I think my therapist doesn’t believe I have ocd, and that in itself is a bit frustrating because I’m not even sure I have ocd, where would I go to find out for sure? Because she doesn’t seem open to finding out if I do or not.

You need to go to a therapist who specializes in OCD and ERP therapy. Unfortunately generalized therapy is not tuned in enough to work for OCD. And with therapists who focus more on psychoanalytics and connecting every thought and dream to secret wants and desires , you can see why this would be a terrible fit. Sometimes you might get lucky and find a therapist that is well aware of ocd, but a lot of the time therapists that help with "anything and everything " will not have the knowledge you seek. Find help with ocd therapists specifically

I went to a therapist who told me I didn’t have OCD when I suspected I did. I stopped doing therapy with her and started with NOCD the next week and was officially diagnosed that first session. I was in therapy for five years and never got better because my non-OCD therapists would just engage in rumination with me and reassure me. When I started coming to NOCD I actually started getting better. Like the comment above, I highly suggest going to a specialized therapist.

I recommend OCD specialists, they will 10000% understand NO MATTER the theme :)

You have to see a therapist who specializes in OCD.

But also an OCD therapist is likely going to tell try to get you to accept that you may or may not have OCD and your theme may or may not be true