from your description it is evident that you are suffering from Obsessive Compulsive disorder
) which is impairing your functioning.As you yourself have described, the symptoms point to sexual obsessions
and neutralizing compulsive behaviors in the form of repetitive touching.
OCD is also known as a silent disease as the sufferer usually suffer silently because of the ego dystonic and embarrassing nature of the thoughts.But do understand that there are effective therapies available.
You will need to consult a Psychiatrist
immediately, who will first evaluate you thoroughly to determine the extent and severity of your OC symptoms .You will then be prescribed medications and adjunctive Cognitive Behavioral Therapy
which is a non pharmacological approach to dealing with your symptoms.Current day therapies will surely help you overcome the otherwise disabling OCD.
Wishing you the best in health and life