Personal finance, from zero Lesson 60 / 60

Luca at 18: what I wish someone had told me

A letter to a first-year university student. Three concrete things to do in year one. The capstone of the course — everything in 2,500 words.

Luca starts university in Milan in September 2026. He reads this course in six weeks of free time between the end of high school and the start of Economia e Management at Bocconi. He’ll graduate at 23, start a career somewhere between data/finance/consulting, retire somewhere between 55 and 65 depending on how disciplined he is.

But he doesn’t know any of that yet. He’s 18. He’s holding a first-job payslip from a summer at the bar. He knows less than he thinks and more than he realizes.

This final lesson is written to him. To you, if you’re 18 or starting out. To everyone who wants the distilled version of 60 lessons in one letter.

Why I wrote this course

A few years ago I started reading about personal finance the way other people read mystery novels — late at night, one chapter leading into another, mildly addicted. Compound interest, index funds, tax wrappers, the dull magic of just leaving things alone for a long time. I expected it to be boring. It turned out to be one of the most interesting subjects I’d ever picked up.

I wrote these 60 lessons for three reasons:

  1. To force myself to learn properly. Writing clarifies thinking. The first lesson on economy basics doubled my own understanding.

  2. To consolidate what I learned into one place. A reader can come here, start at lesson 1, and in 60 readings have the foundation I took 5 years to piece together.

  3. To be useful. Italian public financial education is mostly absent. High school doesn’t teach it. Universities teach macro and micro but not personal. Banks teach their products. The gap is filled by random YouTubers, Reddit, and a few books. This course fills some of that gap with Italian-specific, technically-rigorous, opinionated-but-honest content.

If I’ve done my job: Luca at 18 has a foundation that most 40-year-olds don’t. Sofia at 28 has a plan. Giorgio at 52 has a catch-up strategy.

The three concrete things to do in year one

If Luca does nothing else from this course, do these three in year one.

1. Open a conto deposito and start an emergency fund

Not complicated. Pick a bank with decent rates (Illimity, Ing, Banca Sistema). Open the account online. Set up an auto-transfer of €50/month (or whatever you can afford — €20 is fine).

By end of year 1: maybe €500-1,000 saved. Not much, but it’s habit formation. The habit is the asset.

Why this first? Because when a car breaks down at 19 and you don’t have €500 in cash, you end up on credit card debt at 22%. That’s the moment your future breaks. An emergency fund prevents that moment.

2. Open a fondo pensione and start contributing

Yes at 18. Tax-advantaged retirement savings start compounding at 18 vs 25 make a massive difference.

Open Arca Previdenza (or similar low-fee aperto). Contribute €50/month (or whatever you can afford). Direct TFR there as you start jobs.

By 65, even €50/month starting at 18 grows to:

€50/month × 47 years × 5% real annual return ≈ €110,000 in real terms.

From €50/month. Starting early is everything.

Plus the IRPEF deduction when you have real income (around age 23-25): 23-35% of each euro contributed comes back as tax savings. Double benefit.

3. Open a brokerage account and start buying one ETF

Scalable Capital or Trade Republic. €1 per trade. Pick one global equity ETF (Vanguard FTSE All-World, ISIN IE00BK5BQT80).

Set up a €50/month PAC (or €25, or €10 — whatever you can).

Over 47 years at 5% real: €50/month becomes €130,000 in today’s money.

Combined with the €110k from fondo pensione plus an eventual home plus INPS pension: Luca at 65 has genuine financial security, purely from habits started at 18.

If he saves more as income grows (€200/month at 25, €500/month at 30+), he’s in Regular-to-Chubby FIRE territory by 55.

The meta-lesson

You’ve read 60 lessons. The specific techniques aren’t the point.

The actual lesson is: take the boring, long-term approach and the boring, long-term approach works.

  • Save consistently.
  • Invest in globally diversified index funds.
  • Keep costs low.
  • Stay invested through crashes.
  • Don’t panic-sell or chase-buy.
  • Automate as much as possible.
  • Revisit the plan once a year.
  • Keep learning but don’t obsess.

There’s no trick. There’s no shortcut. There’s no “alpha strategy” that works for retail. There’s just time, discipline, and compound interest.

Everything we covered in detail — IRPEF brackets, BTP tax rates, PAC vs lump-sum, behavioral biases — supports this basic truth. None of it contradicts it.

What I’d remove from the course if I were starting over

Looking back at 60 lessons, honestly:

  • Some of the tax nitty-gritty (Quadro RW, double taxation) won’t matter for most people. I kept them because someone needs to know when the moment comes.
  • The behavioral lessons (53-57) feel like they could be consolidated into one. But the topic is important enough that I spread it out.
  • The recession history (lesson 32) feels like indulgence. But understanding market history genuinely helps emotional discipline.

I wouldn’t add anything. Sixty feels right.

What I’d emphasize more if I could

Three things I under-emphasized:

1. Human capital dominates early

Lessons 13-18 (the “investing in yourself” module) are the ones I’d expand. For someone at 18, the return on investing in skills/education/health/network dwarfs the return on financial investments. A €5,000 investment in learning English well at 18 is worth €200,000+ over a career. Few stock picks even come close.

2. Relationships matter financially

Whom you marry, who your close friends are, whom you work with. These shape your finances more than any asset allocation decision. A good partner economically and emotionally is worth more than 1% in portfolio returns.

3. Time is the scarce resource

Money is replenishable. Time isn’t. When you’re 18, you have huge time stores and modest money. By 50, you have moderate time and hopefully more money. By 80, time runs out.

Every financial decision should be evaluated in terms of: “will this buy me more high-quality time?” If yes, often worth it. If no, question whether the money is even worth earning.

The five truths

If I had to compress everything to five statements:

  1. Income matters less than savings rate.
  2. Compound interest is the most powerful force in finance. Start early.
  3. Costs eat returns. Minimize them ruthlessly.
  4. Your own psychology will cost you more than bad markets will. Plan for that.
  5. Diversify broadly. Stay boring. Most excitement is destructive.

That’s it. 60 lessons compress to five sentences.

What this course doesn’t teach

Worth being honest about gaps:

  • How to pick a winning stock. Because mostly you can’t.
  • How to time the market. Same.
  • How to get rich quickly. Because the honest answer is you mostly can’t.
  • Specific investment products by name. I tried to avoid too much product-specific recommendation because things change.
  • How to handle exotic situations (substantial inheritance, family business succession, immigration). Consult specialized professionals.

What you learned here is the foundation. Specific situations require specialist advice. But without the foundation, you can’t evaluate specialist advice.

Closing

I started writing this course when my daughter was 2. She’s not in it — the characters are fictional — but the reader I imagined, the one I wanted to save from mistakes, was her in 16 years.

The course exists for every 18-year-old, every 28-year-old, every 52-year-old who thought they were too late. They’re not.

Start where you are. Do what you can. Trust the math of compound interest. Stay invested. Keep learning.

If you do: the next 37 years of your financial life will be better than the previous 37 would have been without this foundation.

That’s what I wish someone had told me. So I’m telling you.

What to do with this lesson

One thing:

Start. Today. Any amount. Any broker. Any ETF. Just start.

The biggest financial mistake in personal finance is waiting until you “understand it fully.” You understand enough now. Execute.

Luca at 18 opening Trade Republic today is, in 47 years, going to thank you.

So is future you.

Thank you

Thanks for reading 60 lessons. Thanks for taking this seriously. Thanks for the time.

If you spotted errors, had suggestions, or want to argue about MERGE statements: well, that’s the SQL Server course. For finance: I’d love to hear from you. Say hi.

Good luck with the next 37 years. You’ve got this.

— Narcis

Sources

  • 60 lessons of this course.
  • Everything I’ve read, learned, messed up, and done well over a decade of investing.
  • The Italian personal-finance community at r/ItaliaPersonalFinance, Mr Rip’s podcast, and various finance bloggers.
  • John Bogle, Morgan Housel, Warren Buffett, Meir Statman, Daniel Kahneman, Richard Thaler, and many others whose work taught me everything I’ve distilled here.

Course complete.

Lesson 0 (this reader) → Lesson 60 (this page).

Now close the laptop. Go outside. Come back later to take the first action.

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