Sex Advice

Whitney
Okay so I need to know if I'm crazy or not. 
I'm 21. I'm a virgin. I'm waiting to have sex until I'm married. (Surprisingly that's not the crazy part). I had never done anything (ANYTHING) besides kiss until a little less than a year ago when I started dating my now boyfriend. We do stuff that's not sex. Hand stuff/oral stuff. But like. I cannot orgasm. I just can't. I don't know if it's because I psych myself out because I want to do badly. I don't know what it is. I grew up in a home where sex was not talked about. All I knew is that is was bad and never ever have it. My friends tell me it's a mental thing. But I don't know how to get over it. And it's embarrassing when my boyfriend can't get me off. I feel like less of a woman. Advice?