Yes, it's been said, and you can read it many times right here in this forum. I'm sorry you are feeling this way

Welcome to PC, I hope you will like us.
First, if you remember nothing else right now, realize that depression tells you lies. It lies to me, it lies to everyone. So whenever you have a thought, remember to think that it could be depression telling you a lie.
I hope you can come back and tell us more, as you like.. are you in therapy? do you take meds? etc
TC!