Never had an orgasam?

Rena
Help me out ladies! So I've been dating this guy for three months and we've had sex many many many times- really good sex and although he has been able to make all of his previous partners cum, he hasn't been able to make me. I've never had an orgasm in my life no matter how much I try to relax or focus or not. I've tried so many different things and I can't figure myself out! How do I get over this? What can I do? 😞