Mental Health

I have a mood disorder and if anyone else has that, it's not fun. I have medicine that makes me think horrible thoughts all the time. I'm more emotional and get angry but that just leads to even more tears. Right now, I can only one person helping me. It's my best friend but she has her own battles to fight. I don't know how to battle mine. My family hates me, my boyfriend is growing distant and I don't want to lose him but I am losing my battle with my mind. I get thoughts of that my man will leave me for someone who is not as screwed up as I am. And that I won't ever find love because I am worthless and a pathetic piece of humanity. Right now, I don't know what to do. Help