Just adding another thing.....

It is also hard trying to accpet yourself. Like trying to say you are still worthy even if you have character flaws (and everybody has them-others just cope with it differently). I don't know if this helps, but since your description of yourself reminds me of me, it might. That fact that you have noticed this behavior and see how it is maladaptive and are seeking help shows that you are not only growing as a perosn, but that you want change and want to be a better you!!! All of what I just said are at least 3 postive things about yourself you can hold on to, but I know there are more than that, the problem is YOU have to know it too....and eventually you will.