orgasms?

so me and my boyfriend of 6 years have recently started having sex. I don't really play with myself so I don't know what an orgasm feels like or how to have one? I'm really confused as to how I'm supposed to "let it out" in other words.. the sex is great but what's missing? he also masturbates before we have sex so he will last longer so "I can finish first" so I usually have to fake it.. can I just not orgasm or am I just not relaxing enough?? help 😅 please comment