Porn- it's generally bad for you in anything but lightweight amounts. No harm in exploring what other people's bodies look like when they have sex out of curiosity or to do some sexual study, but it has been proven through brain science that porn is addictive and lord knows the porn industry exploits that. If you want a healthier, richer sexuality based on your body and your partner's body, you do not need porn because porn erodes our sexuality and trades it for shallow, impersonal, unhealthy forms of sexuality.

Celibacy- it depends. if you want more focus on spiritual life then it definitely helps to avoid sex. The main problem I have with any type of suppression is how screwed up people get int he head when they try to be celibate without being capable of celibacy. You've never seen so much mental crap. Suppressed sexuality starts permeating everything they do, co opting their ability to think clearly. People start developing fascinations with things that are essentially driven by their suppression of intimate physical activity. The obvious fact is that every person has unique sexual needs. Some need more, some need less. I have never met anyone who did not need some sexual activity, and I have known many (celibate) priests. They suppress it and it's obvious. Dogmatic celibacy is almost always idealistic nonsense meant to raise one person over another. As a species, we need sex, period, that's a fact as far as I am concerned, it's built into us for preservation of the species and it is as natural as breathing. It also is good for men's prostate health to discharge semen occasionally. So less sex, sure, if you want to focus on other things. Total celibacy, almost never a good idea.