What a great topic!
Its funny (or sad) to see so many plebs made the same mistakes...
Trading sounds great but its not easy money ; selling BTC with a 15% profit is a good deal, but only until the next bull run, so you will always regret selling SATS; don't understanding Bitcoin and don't approaching it as a serious business is another popular mistake, that's why education is the best investment
My personal journey has been full of mistakes, I've bought and sell with a small profit; I'm from Venezuela and my mother told me something about Bitcoin back in 2013 and as a good teenager I did not listen to her...
I've bought some shitcoins, that nowadays are not even listed in coingecko...
LIfe and Bitcoin are a learning process