Hi A hopeless optimistic, WELCOME to PC. It can sometimes feel like things never can/will get better. Depression can be such an overwhelming feeling that it can feel like you're changed forever and there's no way out, but believe me there are lots of great people on here who can/will be with you with what you're going through to understand, to identify with you, to offer you advise and support.
It's not always an easy journey at all, but you've picked the right place to drop in, just keep on talking, putting out threads, telling us how things are for you................and it doesn't have to be forever.
Alison