At the risk of being too simple, sounds like you need to leave some people in your life, and that includes some family. It's not a perfect world and life is hard. It's even harder when you allow negative people into your world who only drag you down. Your b/f issue is not unlike many others, we trust and sometimes we regret it based on how things work out. It wasn't a bad idea to trust if you felt he really deserved it, but now you feel the pain of putting yourself out there. Talk to him about how you feel, do what you can to improve yourself and do what makes you happy. If your b/f wants to stay for the ride and you want him to also, great, if he doesn't or you don't, you can love again and trust again.