Can’t orgasm!!

I’m a 25 year old girl. Lost my virginity at 23 with my boyfriend, been with him since then... My issue is that I can’t achieve orgasm when having sex with my bf. The sex feels good but I just can’t orgasm no matter the position. On the other side I can orgasm when masturbating. I have tried touching myself while having sex but doesn’t work out. I’m so frustated. Please help!!