What's so important about relationships?

Boys after boys say they like me and they want to get with me and just use me basically when they know I haven't experienced pleasurable sex or falling in love. Yes I have liked so many guys who are worthless plus I am a Christian not those who are laid back those who focus in life before love and I have to follow my rules but when you want to tell them that they don't care, they don't respect me and I feel so angry and annoyed and I can't deal with boys who are annoying in the butt but I know you found your love and been together for long. 

I'm just 17 year old girl trying to get to know a boy but non of them is Christian. It's hard to find Christians out in the world but where can I find the right one? The one who understand what I am going through. I'm so annoyed about relationships. Why do they exist. I've seen people around me get hurt because of him this him that. Why can't boys understand us women. I hate it when guys think they are all that and they have the right to do whatever they want. 

Boys can change me and I don't want to me changed. I want to be myself the one who understand my pain. I don't want to be used on my first go at sex or most important relationships. I don't want to get hurt or even follow guys telling me to do this and that. 

I don't know whether to look for Mr. Right or wait until Mr. Right finds me?