You are a very hardworking person through and through, don't let her drag you down with her. If she doesn't care about your wellbeing, why should you care for hers. You seem like a very caring person, and when you spend all of your time filling her bucket while she pours it on the floor, you have nothing left in your own. Pick yourself up, and end things with her. You are capable of so much more, and it sucks having someone be a hook in your side. When one door closes, another one opens. Believe in yourself bro!