i can't cum nor squirt

not sure if this is the right place i must post it. but help me out guys

my bf and i have been trying for years me to cum, normally i get so close to the point where i have to scream but it never happens.

sometimes he's the one who has to tell me that i cum and if he asks i say i don't know he gets upset when i say that, he keeps on saying he cant please me and I'm the first female he ever have that problem with.

he know what to do to bring me as close as possible and i never cum we have to be doing 3 rounds before i maybe can cum once. i am tired of this now i want to be able to come in minutes.

i want to try on my own now i want to get a sex toy.

any suggestions on both?