4 things I’d wish I’d known about investing in my 20s

We can’t turn back the clock, so here’s one Fool’s advice for younger readers contemplating whether to begin investing.

The content of this article was relevant at the time of publishing. Circumstances change continuously and caution should therefore be exercised when relying upon any content contained within this article.

You’re reading a free article with opinions that may differ from The Motley Fool’s Premium Investing Services. Become a Motley Fool member today to get instant access to our top analyst recommendations, in-depth research, investing resources, and more. Learn More.

Now firmly in my 40th year on this planet, I’ve had my fair share of stock market thrills and upsets. Today, I’m going to share four things I wish I’d known about investing half my lifetime ago.

1.  It teaches you discipline

Investing from an early age encourages you to be aware of your spending and consider whether buying the latest gadget, new jacket, or weekday latte, will bring you as much happiness as being financially secure a few years down the line. Cultivating this habit shouldn’t be too painful either.

Most platforms require a minimum investment of £25 per month in order to take advantage of  low commission costs (which can often be £1 per trade). That’s roughly equivalent to a few pizzas or bottles of wine. Is that too much of a sacrifice to begin your journey to financial freedom? I don’t think so.

2. You learn what most people don’t until its too late

Prioritising learning about personal finance and investing in your third decade can really put you ahead of the curve.

I’d wager a lot of people only really become serious about their wealth (as opposed to just getting by) in their 30s or 40s, by which time they may be married, have a family to feed, and a mortgage to pay. Even if promotions at work are forthcoming, there may actually be less money — if any — left over at the end of each month. 

Beginning your stock market journey before any of these major life events is prudent since you can always cut back on investing when necessary, safe in the knowledge the seeds already planted will continue growing in value (albeit not in a straight line) for many years to come. 

3. You learn about yourself

Recognising your susceptibility to fear and greed from an early age ensures you never get too confident or too nervous about stock market movements. This still requires taking action, of course. 

Like most things in life, you only get better at investing by actually doing it, experiencing its highs and lows and learning from both. Dummy accounts may allow you to learn the ropes, but the fact that decisions have no consequences ultimately makes them a waste of time.

And not a single investor in the world gets everything right. Warren Buffett – widely regarded as the best stock-picker in the business — once lost almost £290m on his stake in Tesco.

So long as one mistake doesn’t wipe you out completely (which shouldn’t happen if you’re sufficiently diversified), any errors made in your formative years can be recouped later on.

4. You benefit from compounding

Money can buy pretty much everything but time. The latter, however, can make you an absolute mint so long as you have enough of it. 

Starting to invest as early as possible is probably the best financial decision anyone can make. Despite recessions, corrections, wars and political upheaval, copious studies have shown equities remain the best performing asset of them all over the long term

And thanks to compounding (interest on interest), this decision greatly increases your chances of achieving financial independence.

Remember that £25? Invest this every month for 30 years and an average 7% annual return will give you just over £28,000 at the end. Make this 50 years and you’ll have four times as much.

Paul Summers has no position in any of the shares mentioned. The Motley Fool UK has recommended Tesco. Views expressed on the companies mentioned in this article are those of the writer and therefore may differ from the official recommendations we make in our subscription services such as Share Advisor, Hidden Winners and Pro. Here at The Motley Fool we believe that considering a diverse range of insights makes us better investors.

More on Investing Articles

Long-term vs short-term investing concept on a staircase
Investing Articles

As the stock market goes crazy, here’s a FTSE 250 share I’m thinking about buying

The stock market has officially gone haywire, with the FTSE 100 entering correction territory today. Here's what I've got my…

Read more »

Three signposts pointing in different directions, with 'Buy' 'Sell' and 'Hold' on
Investing Articles

Load up on cheap shares now – or wait to see whether they get even cheaper?

As the market fluctuates, some shares may suddenly look cheap. How an investor acts in such moments can affect their…

Read more »

Close-up of British bank notes
Investing Articles

Is this a once-in-a-decade opportunity to target a second income?

Looking to make a large second income from UK dividend shares? Now might be the opportunity you've been waiting for,…

Read more »

Front view of a young couple walking down terraced Street in Whitley Bay in the north-east of England they are heading into the town centre and deciding which shops to go to they are also holding hands and carrying bags over their shoulders.
Investing Articles

What on earth is going on with Barratt Redrow shares?

Barratt Redrow shares are the FTSE 100's biggest faller over the last month. What has been going on with the…

Read more »

Close-up of British bank notes
Investing Articles

This UK penny stock is tipped to double by City analysts!

What should we do when a favourite penny stock falls due to short-term pressures? Consider buying for the long term,…

Read more »

Calendar showing the date of 5th April on desk in a house
Investing Articles

£390 of income a week from a £20k Stocks and Shares ISA? Here’s how!

Christopher Ruane explains how someone with a £20k Stocks and Shares ISA and long-term timeframe could target hundreds of pounds…

Read more »

Abstract 3d arrows with rocket
Investing Articles

Up 25% YTD! Is this red-hot penny stock still ‘cheap’?

This penny stock has been on fire in 2026. Ken Hall takes a closer look at the investment story behind…

Read more »

Man smiling and working on laptop
Investing Articles

Stock market correction? A passive income opportunity!

Looking to turbocharge your passive income? The stock market correction could be a once-in-a-decade chance to do just that, says…

Read more »