Perhaps a more simple regret, but not buying bitcoin when it was at ~8USD. In hindsight it would've been the easiest way to not have to think about money anymore for the rest of my life.
There's always something called as an Index fund. Which more or less tracks the top companies of a country. Unless you expect your country itself to go down, its generally a good lottery ticket to buy.
I'd say just throw in some pocket change in places where you can afford to lose. You never know as the downside is nearly 0, the upside is in millions.
This is my personal coping mechanism. If I made $10k in BC I would have sold it all and felt very lucky.
I did find a fractional BC on a thumbnail drive in an EOL software wallet for which I had long ago forgotten the password. So that could have happened too.
Gotta be this. Spent hours and hours on Folding when Bitcoin was just getting started, if I’d spent a single day mining I’d be retired now. Doubt I’ll see an opportunity like that again in my lifetime.
I feel like investment regret is a trap as there are so many winning investments we overlook as they are far exceeded in quantity by possible bad investments. Hindsight creates the illusion of perfect information. At least this is what I tell myself to sleep better at night.
If that is your biggest regret, don't you reckon that you have a very good life so far? (I'm assuming that you live a comfortable lifestyle right now.)
I ordered an ASIC miner back when they were first coming up. My shipment got held up by customs and they asked me to pay a hefty import fee. I didn’t have the extra cash at that time so I just let it go and forgot about it a few months later.
If I had plugged that machine in, I would have probably retired by now. A few months of mining back then was enough to have life changing amount of BTC today.