Many of us make mistakes, yet sometimes we cannot identify that we still might be in a bad kind of mindset, so we keep making the same mistakes over and over, and staying involved in shitcoins or can's stop trying to trade bitcoin, which can be some of those kinds of mistakes that are hard to get away from continuing to make.
Not going to generalize this but I have noticed that most of the times when you see someone who actually is buying various shitcoins (something I can never call investment) and they probably have been losing money more and they still stick around this same strategy of buying they are people not making mistakes in my opinion but rather people who are actually trying to get rich quick by buying the next pump coin. Sometimes it is hard to actually hard to get this mindset off from them.
Those who only invest in shitcoins and dream of getting rich quick would not be wrong to call them gamblers rather than investors. It would be better if they could get rich quick by holding gambling tokens, they would lose all their money in a short time. Some people hold those shitcoins for a long time and cherish their false dreams, which can only be a waste of time. I have seen a friend of mine who sold Bitcoin and invested in altcoins for his excessive greed. But after a few days, when Bitcoin fell slightly, his altcoins fell sharply and the sad thing is that some of the coins he invested in have no existence in the market. That is why if you do not invest in any such coin and hold only Bitcoin for the long term, even if you do not leave any guarantee, an investor will never be disappointed.