Pornography Links With ED?

Straight up, I’m at a young age, and I’m definitely a heavy porn user. The fact that it’s pretty much more than daily I feel so ashamed about, and ig this is why this subreddit exists. I’m fit, and mentally doing well, life is going completely fine, and that I know of, I have no mental/physical issues at all (unless you’re counting the addiction). I’m really unsure if I have ED or not, either I’ve never really been so massively erect in my life (by this I’d mean, being erect it’s visibly hard just falls to the side sorta thing), or this heavy usage has affected it. Keep telling myself that I will stop, but never actually get to it. Posting to see if anyone else has had this issue and see if the title would be true in this case (relatability and confirmation). Either way no matter the answers, I’ll try put a stop to this, and I’m ready for it.