Do you think it is okay that I'm depressed and haven't told anyone about it?
Well, why are you depressed?
I'm thinking about my life. Today I'm about to break up with my girlfriend because it's always the same story with her.
It's completely fine to feel depressed sometimes, but bottling those feelings up will only make the problem worse. If you are feeling depressed, you should seek help. Talking to a therapist can help since they can get you treatment to help you feel better.
Fuck off.
Your bottled up feelings are already causing you to lash out at good advice, don't you see it? You should tell people when you're feeling depressed and then attempt to work through it, or else you'll scare everyone away.