I (20F) have been in a relationship with my boyfriend (20M) for 2 years now. We fit very well together, spend a lot of time together, and have both discussed how we can see this as a lifetime thing. 

The problem is, I have BPD, which I'm trying to cope with, and it's made our relationship fragile and at times I can be abusive. I don't want to be like this, at all. I want to be healthy and have the strong relationship we once had. I have grown up in and still live in an abusive home and I don't have friends I see regularly which causes me to clingy and unhealthy depend on my boyfriend. 

When he hangs out with his friends or mentions a conversation with one of his female coworkers, I take it very personally and feel as if I am not important and that these people matter more than him to me. If I do not get 100% of his time, I feel like I am worthless and like he's going to leave me. I recognize this as unhealthy and toxic, I've told him about my insecurities and we're trying to help me work on it, but it's gotten to the point where this relationship is on the line and I can't afford anymore screw ups. 

I constantly need reassurance that he loves me and wants me and isnt going to leave me, and I can tell he's growing tired and just wants things to be normal.

I want to be better and healthy and be able to be an individual and not constantly stress about my boyfriend and the security of our relationship, when we're together and we're apart. But when my mind and insecurities are constantly trying to fuck me over, how do I win?

TL;DR: I get very insecure and feel worthless if I don't constantly have my boyfriend's full attention. Our relationship is becoming very fragile because of my BPD and I'm afraid I'm gonna lose him. How do I overcome my disorder and save it?