PCOS struggles

I got told I had PCOS about 3/4 months ago now after trying for a baby for over a year and half, I’ve contacted my doctors so many times now and all they tell me is they can’t help me until after I’ve had a period. It’s so frustrating because my periods are so irregular I have 1 every 3 or so months if I’m lucky, it gets me so upset and frustrated because I don’t know where to turn for help, so my question is, is there anything I can do while I wait any vitamins or supplements that will help me??