Hello strocomb, I've never been in your situation before, but I feel for you. I want you to hold on, for yourself.

I can understand how being depressed can cause friends to become distant. Especially if they don't know what's going on. When I'm depressed, I do notice I act differently or do unhealthy things, which can make me feel more guilty. I've learned that when I'm depressed, I have to give myself time to feel the depression and not beat myself up for how I acted in the meantime. Otherwise, I only become more depressed. Instead, I keep a goal to act better in my head. I've also felt that feeling of never being so alone. It's funny how it's other people who make us feel that way, and not actually being alone. Sometimes you need to find an emotional wedge between yourself and other people who are bringing you down. If you have to deal with them, I found that imagining them in silly ways or turning off my emotions in the meantime made it more manageable for me.