Cancer? Gynecologist Apt

I’ve rarely go to the doctors I get serious anxiety when I have check ups and any appointment for that matter. But I’m worried that I may have ovarian cancer, my mom had it and I should really visit the gynecologist. I’m losing sleep over the worrying. I have discomfort during sex and I’m noticing changes at least I think I do it could just be in my head but either way I’m scared to go tbh.

Are there are tips or suggestions for this process I’m nervous and not that eager but it’s past due. (I’m 20 by the way)