I have just seen your post and believe it or not I have just written a blog post on bulimia - how to stop vomiting. Here is the link Bulimia: How To Stop Vomiting « A KNEW YOU
I write lots of things about eating disorders and recovery as I once was consumed by the addiction like you. But life can change if you are willing to work hard on it. I would urge you to get professional help or at least a support group like Overeaters Anonymous ww.oa.org where other people in recovery will share how they did it.
All the best