Hello Zygara,

You need to get back to your doctor and mental health team and let them know what is going on with you. I think there is more to this than thinking about sex and obsessing, this is about how you feel about yourself and you appear to have a very low opinion of yourself. CBT can be helpful for some with mild to moderate depression and can help you address things on the surface but it sounds like you need more than that, you need therapy that addresses the core issues lying deep under the surface. Also some medication to help you with the anxiety you feel and these bad thoughts that you hold on yourself.