DebDeb, are you still viewing porn? If the answer is yes, it might be a good idea to stop and if you can't do that on your own, it's possible to get some help.

I've heard a few women say watching porn made them feel asexual for a while. They didn't understand it. It just happened. Instead of getting turned on, they started to feel turned off to sexual encounters. But they still felt romantic and still loved their partners. They just didn't want to have sex. They didn't feel turned on.

Their sexual feeling slowly returned when they quit viewing all porn. If they watched more porn, they lost their sex feelings again. The feelings slowly came back if they stopped looking at videos and magazines and other visual depictions, like strip clubs.

They were talking about adult experiences. I don't know if it would apply to someone who started watching at 12, but it would be worth a try.

I wish you the best.