Hello there!! Welcome to Psych Central!!

I believe you do have ADD, was not entirely sure though, not until I saw your profile. Still though, depression can really harm the brain, because you overthink problems and get into so much sadness that you either don't eat at all, or just eat junk, and makes you look twice at everything that you do, and all of that with a bunch of other stuff can damage your brain very well.

I go through some of the stuff you go through like playing chess. But all the other stuff beside video games, I think they're generated and motivated by low self-esteem, which is something that accompanies depression, and IS caused by depression, making you stop and say "I'm a zombie", if I understand that correctly from you.

I would like to hear more from you, and you came to the right place. People here will help you get through this depression crisis. I hope I did say something helpful