((((((Tara)))))) It sounds like you're taking all the right steps to try and fix this. I've been in your situation before, thoughts that you don't even believe are so annoying. Sometimes it can help if whenever you think the thought to say the opposite back to yourself and even reasons why.

For instance: "I hate myself" ---> "No, actually I like myself because I am good at/I like my relationship with my friends/I try to be a good person" etc, whatever it is for you. It can get really draining though

*hugs* and thinking of you