Everytime something I find something out I wanna cry like I get sad but then my mind is like "liar stop faking your emotions" like I can not tell when my emotions are true or fake same thing with my personality like I can't tell if I'm faking how I am or if I'm like this or evil!

That an intrusive thought! It wouldn’t bother you if it was your true nature. Allow the thought, treat it as meaningless and move on with your emotions. 

That is an intrusive thought! It’s one I have quite a lot

This is so me. Once you learn to tame your ocd it will get so much better. 