I have never had an orgasm, everything during sex feels the same to me. It gets good and then it stays good.. I never climax. I don't know what to do.

Not to worry, its actually very normal for women to not have an orgasm until they hit their sexual peak, which many agree is in the 30s.
I know that sounds absolutely dreadful... having to wait until you are in your thirties to enjoy sex... but, its okay to just enjoy sex. Don't stress yourself with what you "should" be feeling. Just relax, and enjoy yourself.

-m

You know a main reason why our peak is later? Our self-image usually gets better and our confidence to let go of ourselves become easier as we mature. So, a lot of problems women have achieving an orgasm lie within their minds! (Of course its not as simple as "Its all in your head" but women's comfort with their own sexuality plays a big role in their ability to achieve an orgasm.)

Can I ask, have you tried doing it yourself?