One of my biggest regret was cashing out most of my bitcoins when its price were around $4,000-$5,000 and after 1 month, its price skyrocketed to almost $20,000. Another crypto-regret was investing into an infamous 'ponzi scheme' called USI-TECH as it really looked genuine. I remembered I even attended their conferences in my country and people there were discussing about their investments. It persuaded me to drop $150 on their website (the amount was significantly large for me as a working student in a third-world country) as it promised a return of 150% by 6 months.

Unfortunately after 2 months of waiting, the website abruptly changed its user interface and withdrawing all of your funds was seemingly impossible. News resurfaced and exploded about the project which scammed thousands of users including me.