Is it normal that i started watching porn as a teenager?

I started watching porn when I was 13 years old(I have been masturbating since I was four or something, but that's another story). I kind of always knew porn existed, but before my teen years I didn't want to research it and watch it because I simply didn't feel the need to. I eventually heard about tentacle hentai and how disgusting it was, so I looked it up just to gross myself out. The problem is, I liked it. After that, I started watching porn a lot. I never really stopped. Is that normal?

When I was 14 years old, my parents told me I shouldn't watch porn because it is for adults. They didn't really know I watched it. they just told me that, as a warning perhaps, because they didn't know I had already seen pretty much everything.

Oh, and that's another thing. I can't get shocked anymore because I've seen the worst porn there is (at least I think so) when I was a teen. It's not really a problem, because I can still get off to pretty normal stuff even though I've seen the most disgusting shit on the Internet (I probably haven't, I'm exaggerating).

Basically I just want to know if my situation is normal.