How long did it take you to get diagnosed and how did it finally happen?

I am seeing a pdoc and therapist right now. They try to diagnose me but it seems difficult. They say they are confused. I seem to show borderline traits and they came up with bipolar II or cyclothymia. Also they are irritated that I can still control myself more or less and seem to be high functioning but I know that I could be functioning at a higher level if it wasn't for the constant mood changes. I crave a diagnosis to make treatment easier and more effective. But maybe that won't be possible and today the T said I should just try to do a therapy that teaches me to handle my moods in a better way. But I am so fed up with therapy because it's been more than ten years of going from T to T and I am only 25. I want a diagnosis to maybe try medication and to know wtf is wrong with me. Do many of you have various dxs?