So sorry about your story.
Don't worry about being a "virgin". Just work on healing yourself and accepting yourself and a attracting a good relationship. In the worry about experiencing sex in itself you may attract another manipulative person. Accept where you are right now. You are very brave to talk about this and admit it even to yourself that it happened, some people can't do that. You were a child and you were horribly treated and betrayed emotionally. Sometimes that's the harder part to deal with then the physical aspects. Don't be so hard on yourself. You're doing great, better then you think.