You're certainly not alone if that helps! I have been loathing my utterly unbidden sexual nature ever since puberty. It has caused me to feel anger, regret, pain, and depression. I wouldn't say I "fear" it in the same sense you seem to mean. That is, seeing as actually having sex is something I would never be able to bring myself to do, I'm not afraid about having it.
In your case, I agree with the idea of seeing a therapist. You seem to imply that your attitude about sex was not formed of your own will. I think you need to talk to somebody who won't judge you or make you feel negative in any way for saying what's on your mind. That way you can come to your own conclusions about how to handle your sexuality. I think once you are able to process the baggage you seem to have surrounding the issue, you'll be able to move forward in whatever direction you choose.