Advice please! It’s been three years and I (25F) still can’t get my (22F) girlfriend to climax. /u/Picassos_left_thumb Sex

We’ve done it for literally hours at a time, tried flavored lubes, all kinds of toys, lots of foreplay, dirty talk, I’ve had her guide my hand while I touch her to show me exactly where and what feels good. I’ve watched her touch herself to see if there’s a technique that she prefers. She clearly enjoys what I do and she’s told me there’s nothing to fix, and she gets close all the time but never makes it there. I’m dying here 😂 Please, please does anyone have any advice for me? I don’t enjoy having sex for so many hours, it makes me tired and it also makes me feel bad about myself that I can’t get her to finish. But I don’t know how to find a stopping point if she doesn’t climax.

We’ve done it for literally hours at a time, tried flavored lubes, all kinds of toys, lots of foreplay, dirty talk, I’ve had her guide my hand while I touch her to show me exactly where and what feels good. I’ve watched her touch herself to see if there’s a technique that she prefers. She clearly enjoys what I do and she’s told me there’s nothing to fix, and she gets close all the time but never makes it there. I’m dying here 😂 Please, please does anyone have any advice for me? I don’t enjoy having sex for so many hours, it makes me tired and it also makes me feel bad about myself that I can’t get her to finish. But I don’t know how to find a stopping point if she doesn’t climax.