Orgasms

Kelsey
Ladies, I'm having so much trouble having an orgasm & I can tell it discourages my boyfriend. I've read up on it on how to help achieve an orgasm but still nothing. I know it's very common in women as well. 
I've masturbated only a handful of times & can't even make myself orgasm.
By myself & with him I get all shakey & feel like it's going to happen & nothing. I have no idea. PLEASE HELP!