Hmmm...

Well, in my opinion, porn is a bad thing when it becomes a compulsion--if you feel the need to constantly do it, somewhat like an addiction. I watch it every day, but I could very well go on without it. When I have homework to do, I'll do my homework first because porn is a low priority, but something to enjoy.

However, you said you were getting into more extreme porn. What do you mean by this? The type of porn people watch reveals things about themselves (or at least, what might be going on inside your head). Were you watching sadomasochistic or rape porn?

Regarding the exhibitionism, don't worry about it unless that too becomes too much. Like DutchBoY said, it's pretty much your call because you know what you did and you're the one that knows whether or not it was appropriate.

May I ask: how old are you? There is nothing wrong with never having a girlfriend or relationship until you're older, it's just a different style.