I got into crypto back in 2011/2012. I used PayPal and bank wire transfer extensively back then, as I bought and sold a lot of stuff internationally - so to me bitcoin seemed like the natural next step, and a godsend to people like me. At my height, I had 100 BTC.
Eventually big events in my life happened, and I sold my coins out of necessity. I found myself unemployed, separated, and broke - so I sold everything I owned. I cashed in around $40k or so from the coins, which helped me pay off my debts and get a down payment for my house. To be honest, I personally don't know anyone from way back then that became filthy rich off crypto, most sold off their stuff when every boom cycle started again, afraid that it would be the last one...the people I know that became rich, were those that went all-in on crypto around 2017/2018. They dumped everything they had, and managed to 10x-100x their investments.
Of course, had I held onto those, I'd be set for life now. But hindsight is 20/20
But with that said, I remember around 2017/2018 when the first "real" boom occurred - that's when everyone pretty much abandoned ideals, and went into it for the money. Lots of people made life-changing money back then, and the idealistic dream was pretty much dead. "Store of value" won the war, and soon after "moon lambo".
At least for me, the writing on the wall was clearly that crypto would evolve into just another financial instrument that big finance would pump and dump periodically. Though I could not foresee a crypto-friendly US gov. entering the picture.
You didnt make a mistake. There is no reason to believe 40k of coins becomes 10M... and if you keep that much on a USB drive I think it would send most insane!