How do I stop from relapsing into my eating disorder?

I've struggled with anorexia for two years, and over the past three months I've swung to the other end of the pendulum to bulimia. About 3 weeks ago, I made a dramatic improvement. I've begun to accept my body, and I feel extremely motivated to recover. Unfortunately, I can't stop throwing up. I'm not bingeing and I don't worry about gaining weight anymore. But it seems like anytime I'm anxious or upset, throwing up is the only way to calm down. I really just want to be over this and live a normal life. My family thinks I'm completely better, and I don't want to upset them with this. I'm mad at myself for doing this, and all I want to do is stop quickly and permanently. How do I get over this on my own?