Need some advice on preferring PMO over sex

Hi I need some advice.

Me and my girlfriend have been together for more than 2 years, during this time we have had some sex but I always cause "extreme" pain to her, possibly due to my crooked genitals, however she wouldn't even let me finger her (vaginimus). Recently I don't even bother to try to have sex anymore since the sex we had were too troublesome and not very enjoyable anyway. Unconsciously comparing this to PMO, PMO was effortless and quite enjoyable and this makes me want to PMO more. I'm a bit lost as to what I should do now, should we both go to the doctor's for a check? I had the delusion that nofap will create great sex but it seems it wouldn't be true anyway if I had Peyronie, so why don't I just PMO from now on? I know the benefits of nofap and I have personally experienced some of them and I really appreciated them to be honest. What should I do?