sensorimotor ocd, anyone overcame his/hers? Pls tell me how

Im aware of my tongue, and i swallow non-stop, the only peace I get is when i sleep. Ive been this way for almost 3 years and it rendered me incapable of reading normally. It mainly affects my reading and in class I cant even read and comprehend whats written on the board or when the professor is teaching something. I WASNT like this at all before, but now even preschool kids are likely better than me at reading. I hate this. Why. Fuck. I feel so uncomfortable all the time most especially in public. And since i keep on swallowing some or most of them noticed my weird swallowing acts in class. Fuck. Fuck. How do i overcome this.