Sheila, first of all, welcome to Zity. Thank you for being so open enough so early on to as to share sensitive, personal experiences, however troubling they may be.
I am truly sorry this happened to you, but no, you are not crazy at all. In fact, you are completely normal. It is totally understandable to experience any kind of trauma from what happened.
It is also totally understandable that you are turned on by the idea of being "roughly handled" and having someone else in total control. You are not alone in having a scenario like that excite you, although for many, it's alright if it is either in fantasy, or (controlled) role play, and not a real violation by someone you did not desire experiencing that with. In other words, being controlled by someone and roughly handled is ok, as long as you have proactively given consent beforehand. In this case, this was wrong, although you can derive elements from it that would excite you.
Take for example, I've long fantasized about being tied up &/or handcuffed and "abused" sexually, and have often masturbated while thinking/fantasizing about it. Now if some stranger(s) were to come along & somehow subdue me against my will & sexually abuse or assault me against my will, that would never be something I would want to have happen, in similar fashion to what happened to you. Yet, it is possible a sexual turn on might be derived from it, depending.
So it is normal that you can have desires of being handled roughly and totally controlled by someone, as many folks do. But ultimately within the context of your control, like something you'd consent to ahead of time, and not how you were indeed violated in this case.
As far as professional help goes, that's ultimately up to what you feel you need. Not knowing anything else about you, i might suggest ultimately seeking a partner that would help you fulfill your fantasies and desires within your boundary of consent. So that things that turn you on can be converted into positive experiences. Which may actually serve as a form of a healer possibly.