There are a lot of people here that feel the same way that you do. Including me. Good news: you are not alone.....But you need more help than this to stop. I tried to do it on my own, because I was fearful for my life. I can't go to some inpatient treatment, because I have to work to support my family. Now I am changing jobs, and won't have insurance for a while....And I have found it very hard to stop on my own.
Get help now. The sooner the better. I started by telling my doctor, and my boyfriend. Now I at least know that they are monitoring me. I hide it well, but have to really watch myself more...It makes it at least more difficult. I am glad that I did it.
Not to say that there aren't people who have overcome this on their own...It just takes more time, and is far more difficult.
.....Baby steps, I guess.....Baby steps.
Good luck.