Sir, It seems that you are clear about your diagnosis. Please visit a mental health professional and get a prescription written.

Repetitive tasks, intrusive and repetitive thoughts, checking, counting, disproportionate excess need for order and cleanliness, as well as anxiety when not able to do the same are signs of obsessive compulsive disorder. Patients with OCD suffer from significant distress, anxiety and depression due to the same which impairs their quality of life. Please consult a Psychiatrist at the earliest. With a combination of medication and behavioral therapy it is likely that her symptoms will improve.