[XxLoveIsALuxuryxX]

It's not "stupid" and you obviously aren't doing it for "no reason." Nobody cuts for "no reason."
I understand what you're saying, and in all honesty, I know you feel like talking to people doesn't help at all, but it does. The difference is talking to someone who is PAID to listen and someone who is WILLING to listen. It can also be helpful to talk to someone who is doing the same thing, as long as you don't egg each other on.
Depression is a dark hole and it's I know it feels inescapable, but the best thing you can do is throw yourself into something--a new project, writing a book, drawing, starting a small (no cash required) company, etc.
But also know that it's okay. It's okay to feel hurt and unsure. We're all walking around hurt and unsure, even the people who seem fine.
The best thing you can live by is "No matter how bad a day I am having, there is ALWAYS someone out there who has it ten times worse." It doesn't sound helpful now, but I hope you'll understand.