Welcome to Beyond Blue. It's good to see you've found your way here. You'll find the people are caring, friendly, supportive and respectful of privacy.
I'm able to provide you with some information. You'll find others will pop on to add their input also.
I have PTSD, anxiety and depression. My doctor did the initial assessment. They did this using a standard test (checklist). I'm not sure if this test also identifies OCD tendencies. The checklist is available on the Beyond Blue home page. Find the facts page - there is a document - Anxiety and Depression checklist. You can have a look at that and submit it if you wish.
Do have a doctor you see regularly about your OCD? I have found if I tell my doctor about not getting the right treatment from my psychologist, he has helped to find one that does understand my specific issues. It really makes a difference when you have a doctor who understand mh issues and is prepared to take the time to do something. I have changed doctors and psychologists when they have not helped. Sometimes on medical centres websites you'll find that the doctors list their areas of speciality. Look for ones that list mental health. Then get them to help find a psych that works with people who have OCD.
The Beyond Blue home page has a number of different publications. Are you interested in further research? If so, go to the top of the home page and insert in the search field -
Literature review of anxiety disorders
Hope this helps. Please let us know how you get on.