After all my altcoins have reached virtually zero, I have very few tips to give
The point is that the main feature of the crypto world is instability and insecurity, which is precisely what it produces - if we are good and lucky - big gains.
If you don't like it, invest in mutual funds
I think you've doing the HODL too much and that is the reason you lost in this game my friend. Some of your tokens are meant to be sold and not of them are going to be in your wallet forever. And don't forget to execute stoploss which is one my mistakes and that is the only way to manage the risks here in crypto trading. But you are also right, either a shitcoin or good project will still give you big gains if you are lucky to experience its pump or we are in a bull run.
unfortunately we do not know whether there will be a pump later, and when no one will know. therefore stop losses are needed to anticipate a dump, or when our analysis is wrong, without stop losses I think it leads to gambling, especially if we hold it to become junk coins, this is not recommended in trading