I am not sure how you started your trading life, but I have a feelings you are trading more like gambling. There is a lot to trading than that and apparently you did not have your strategies right.

Everyone is bound to make a mistake, most especially if you enter the trading world without learning. If I am correct you must have invested in a lot of shitcoins and probably bag holding some of them right now. If you are holding a coin you still trust, then hold, otherwise if you have a chance to sell, and then do.

Trading is huge and it is not something you can learn in one day, so you may need to visit Google and start looking for info.