I can’t find things that make me happy

I have no motivation or energy for anything, I need help I’m just sleeping and crying. That’s all I do, and I’m not on medicine anymore since I overdosed the other day, please give me advice on how to find something and get out of this depression. I’m so miserable and I’m so useless I’m a bum with nothing to do. I don’t know what’s wrong or if I’m doing something wrong, I’m just sad all the time, and I have friends but I don’t want to infect anyone else with my sadness.