Can’t finish with her /u/PreparationWilling31 Sex

I find it very easy to finish by using my own hand every time, but when it comes to having sex with this one girl i can’t finish, not even when she gives me head or a hand job, i have to end up just making myself finish at the end, im nervous this could be a problem in the future when seeing other people and i really want to fix it but i have no clue why, i have never finished from sex in the last year and a half, i have tried to limit my masturbation to once a week and stop watching porn to see if that’ll do anything. i also find it could be the condom that could be to tight? but i’m not sure as when i use a larger condom it just gets all squished together loosely

I find it very easy to finish by using my own hand every time, but when it comes to having sex with this one girl i can’t finish, not even when she gives me head or a hand job, i have to end up just making myself finish at the end, im nervous this could be a problem in the future when seeing other people and i really want to fix it but i have no clue why, i have never finished from sex in the last year and a half, i have tried to limit my masturbation to once a week and stop watching porn to see if that’ll do anything. i also find it could be the condom that could be to tight? but i’m not sure as when i use a larger condom it just gets all squished together loosely