I used to masturbate in a similar manner.
Problems arose from this however, as when it came to have traditional sex with a woman I was not working how I was suppose to.
I was so used to masturbating face down that sexual intercourse wouldn’t work unless it was missionary and I was dragging myself in and out face down. If that makes sense.
I also could not get an erection unless I was face down doing what I was used to, to get off. When with a woman I was completely limp unless I laid face down which I didn’t want girls to see I masturbated that way, it was embarrassing.
I knew I had to fix it and I discovered it was called TMS or Traumatic Masturbatory Syndrome HealthyStrokes.com
What I did was I forced myself to masturbate sitting up or laying face up. At first I couldn’t even get hard let alone ejaculate, but I would never go back to the prone position I was so tempted by. Eventually with build up and such I would get so horny after a few days of this that I would get hard and ejaculate the traditional way! I was so excited the first time I did it. I kept doing it ever since and now I have trained myself to masturbate the traditional way!
It was a hard thing to do but I wanted it bad enough and I did it. My EQ skyrocketed, sex felt AMAZING, handjobs and blowjobs felt great(Didn’t do anything for me before) and I could masturbate at the computer where the porn was :)
I encourage you to do some research and change your ways before you cause damage to yourself and your sex life. I know how it is and Prone felt so good, but once I changed the idea of doing it prone is not appealing whatsoever.
It is hard because you are basically retraining yourself how to masturbate, orgasm all over again and at first traditional methods do not feel good. But eventually you will retrain yourself and it will feel even better than prone ever did! Plus your penis will be accustomed to sexual acts such as sex and handjobs and such as you will be used to that type of stimulation.
If you have any more questions just PM me I’d be glad to help.