First, welcome to the boards, untold.

If you have a car, why can't you go by yourself? If you're in college, I'm assuming you're over 18.

How about talking to your school counselor, or an aunt or other adult relative you feel comfortable with? In my opinion, you have symptoms of obsessive compulsive disorder, or OCD, but what a doctor or psychologist/psychiatrist would diagnose you with (if anything), may be something else.

If you're over 18, your mom doesn't have to know anything about it. Anything you tell your psych or s/he tells you is confidential, and your psych can't tell your mom or anyone else without your permission.