Where do you start? You just did! You recognize how you're feeling and you're expressing the feelings and wanting to change and treat yourself better. It's really tough to do, but the one thing that helps me is crushing the negative self-talk when it kicks in and replacing it with positive self-talk. Practice, Practice, Practice. It works and takes time and effort. Also, when I mess up, which is all the time, instead of being super self-critical, I just get back up on the horse and TRY again.