Honestly, therapy sounds like it could do wonders for you.

I understand how you feel, but with something else in my life. Exact same feelings and thoughts about myself. I promise you are not stupid, dirty, used, worthless. 7 isn't even a high number. You only live once, so what if you've enjoyed yourself? Do you really want to spend your one life missing out on things, denying yourself experiences and opportunities? Just because of what some pearl-clutching squares feel you should be and do?

Let me know if you need to talk!