Enjoyable Sex Help!!

So I've had sex multiple times and each time I don't find it enjoyable no matter how relaxed I am, not matter how much foreplay is involved I just don't enjoy it as much as my partners have and I don't know what to. I've never even had an orgasm during sex and it's frustrating because I've tried soo many things! Can anyone relate? Or give me any tips on what to do because this really sucks!