You can eat healthy, workout and still have a healthy sexual relationship with yourself and/or others. These things are not mutually exclusive. Indeed, There's little to no evidence that deliberately abstaining from sex and masturbation--unless you have an addiction to it--contributes to mental clarity. And no, YouTube "NO FAP MADE ME A GENIUS" videos aren't evidence. Abstinence helps with your willpower, sure, which would lead you to adopt positive habits such as eating less and engaging in physical exercise. But it seems strange to deprive yourself of one of the joys of being human, which is exploring your sexuality.
Edit: I'd also add that I think most adult males have a porn addiciton, so "exploring your sexuality" means without visual aids unless they're in the form of another human.