I am a 25 year old male. I'm uncircumcised and have heard that it is possible to desensitize your penis from masturbating too much and watching porn. To the point where your penis gets used to a very precise way of being handled and touched. I have also never had sex and have a feeling this plays into my inability to get a hard erection when I'm having fun. Does this all play into my inability? What should I do? Take a hiatus from porn?