First time watching porn

I’m 17 and I just masturbated while watching porn for the first time and I can’t help feeling super guilty about it now or like everyone knows about what I did and i should get some sort of punishment??? I have just been raised in a religious household so i haven’t really been exposed to much (also sidenote penises are really gross)

Does anyone have experience feeling this way or knows how to kinda normalise it I guess?