Looking for motor tic suppression techniques without having to go to a doctor.

Cognitive behavioral. cognitive behavioral therapy training by a clinical psychologist, may help reduce the tics. Some herbal preparations that reduce anxiety can help. If these do not help, consult your doctor. there are several alternatives which are not habit forming and have been shown to be helpful in reducing the occurrence of tics.
Competing behaviors. adaptive alternative behaviors can help suppress tics, also removing all additives , hormone disruptors, and dietary irritants can help. Tics are an expression of something being in your environment(or diet) that your body cannot tolerate. An elimination diet might be helpful to identify candidate items(2weeks rice ground beef and veges (except nightshades tomatoes, potatoes and peppers)