Should Ibreak up with my girlfriend before I kill myself?

I don't want help or anything, already tried therapy and medicine but nothing seems to work. I just want to know if I should break up or not (for her sake). It's been tough for as long as I can remember now, and recently I almost got killed which just puts another load onto the existing stuff that was going on/things from the past. I'm not sure when I'm going to do it, but the more time goes on it seems like it's the only option I have left too free myself from thoughts and past trauma that's been eating me alive on a daily basis.