<human>: I wrote a book on this post originally, but to be honest i'm too ashamed to post it.

The short: i've been with her for 1.5 years, dated for 1.5 before that. In the past year she's been incredibly violent, to the point where she split my head open with a steel hairdryer in my sleep, and a black eye by hitting me in the face with a pipe while i was driving the week before. guns, knives, both been pulled on me, she's destroyed all my self worth and has exploited every single emotional weakness and past truama i've ever shared with her and sleeps at other guys' houses to get back to me on a regular basis. 

The problem, though, is me. I'm pretty pathetic, i've isolated myself completely from my friends, and after years of hearing it, i am intensely aware of my physical flaws and the fact that I am nearly 30. how can i start over, before this kills me? I'm terrified at the prospect of ending up like all of my coworkers, old and alone =/ i'm not a teenager anymore, i don't go out, can i really start over?

Give me the gist of the text in a nutshell
<bot>: im in a terrible relationship and want to get out but im terrified of the notion of starting over in my 30s and ending up alone. How do I start over?