Go to the doctor or just a therapist. They can be good for you. From knowing you i think you could benefit from a therapist, they can give you advice and strategies on how to deal with and ease out of the behaviours youre talking about.

You dont have to do everything yourself. It doesn't make you less nobel or more weak if you cant fix your brain and completely cure yourself from first principles. Because thats not possible. Its ok to get help. People want to help.