I think I was a really depressed kid from 5th to 7th grade, but I've been an optimist ever since.
Damn, so many negative thoughts in this thread, haha... Seriously, can't we all be a bit more positive? Delete Facebook or Messenger or whatever similar crap on your phones so you don't check on it so often (most of you probably don't do it anyway, but I'm saying it just in case, since it sometimes makes me feel terrible), watch less TV, take a walk outside - yes, even if it's a sh*tty 10 minute walk, I don't give a sh*t, it can help, watch some inspirational videos, play some emotional games, cry - yes, crying helps a ton, let all that sh*t out, don't fu**ing worry about money so much, the point of the system is to make the common man poor while some rich asshole wipes his ass with money, money practically doesn't even exist anyway, look outside the box, "zoom out" of life a bit, life does have a meaning, it's not all "hurrdurr thur is no point we're heer just 2 haz sechs n spread auwr geens!1!!", like The Hippie said, people have slowly started to live in rooms instead of in this world, so get out of your room, will you?
Call me naive and my pieces of advice cliche, but I believe it indeed can help.