why can’t i cum?

my body count is 5. i’ve only ever came twice, and that was with the same person. i had the best sex i’ve ever had about 3 hours ago... but i couldn’t cum. it feels like i’m reaching climax but i just can’t physically cum. my clit is also extremely hard to pleasure, the majority of the time i won’t feel anything. so what’s up with that? i want to cum because i feel like my partners are so disappointed when they can’t bring me there!