Venting Tired, feeling like no one cares

[Shell]

I work at a job that I dislike a lot and at which I am getting worse everyday due to depression. My parents criticize me for everything and just want to push antidepressants on me (of which I already tried some and they didn't help) so that I can be "functional". My so-called friends don't give a shit about how I feel. I feel like the only person who really cared about me was my girlfriend who died of cancer. Things are grim and sometimes I really feel the urge to CTB but I don't really want to... I want to get better, to be able to feel joy again... it is sad, I feel like if a single person cared more, offered some kindness, etc, everything would get better, but this person never appears... do I have to learn how to feel good all by myself? I am really lost...