Can’t stimulate my g-spot

Hi, yes I know it is 2-3 inches deep on the top and I can feel it when the skin gets a bit textured.

It doesn’t work.

I’ve tried the masturbation tips online and different positions with my bf. I can only orgasm through clitoris stimulation (oral and masturbation) —and the orgasm only lasts like 3 seconds :( Nothing is working.

I heard g spot orgasms are on another level.