I'm thinking of ghosting all of my friends.
What are you going to do when you lose all your friends? Don't you have good times with your friends?
I'm not in a good mood this week so I don't want to think about any good sides they have.
You are not in such good cheer and I feel bad for you. Ghosting your friends only because you are having a bad time right now seems rude. Think things through more carefully, and also think about if it might have anything to do about your own faults and not theirs.
I don't want to think about bad sides of my friends.
Just leaving people like that will not help at all though. You can tell your friends you need space if you want but don't just ghost them like that.