I agree with TS, there are coins in my crypto portfolio that I did not manage to sell immediately after receiving, and over time their value approached 0. Recently I decided to revise the coins of old projects and was pleasantly surprised by the prices of some of them and the fact that the projects are actively developing.
I also started watching my portfolio. its value is constantly increasing and I like the way how all the things are developing. almost every day I sell some coins from my portfolio and getting profit