I am not a prone masturbator, but I cannot orgasm using my hands

So, like the tittle says, im not able to jerk off using my hands

Im not a prone masturbator, I dont know if there is a name for what i am, but Iets called "rubber"

I discovered masturbation when I was a kid and saw how my neighbour rubbed his pelvis against a tree, he called that "scratching my balls" but then I discover it was masturbation so I did the same since them, I havent changed the method, except of course I dont use a tree, I always use the bathroom's bidet, I put on my knees and rubb against it, I can also use chairs and other objects, I tried to jerk off, I do get an erection and I mable to keep a long time but there is no ejaculation and that frustrated me

Of course, im not able to jerk off normally anymore, but since Im not a prone and my method is quite similar to doggystyle and I only use solid objects and no pillows, does it gonna cause me problems to ejaculate during real sex? I found no information about it except for prone people and I thought maybe people like have no problems during sex but I cant say, I just know im not able to jerk off normally

does the "prone therapy" would work for me too?