I am severly addicted to prone masturbation and I am scared I am close to ED

I dont even remember when I started masturbating coz rubbing myself was a thing since I was a kid. I could never switch to my hands and got no pleasure with it ever. I have tried masturbating with hands but it never gets me ejaculated, I need to go the prone way always, I have done nofaps before for 21 days before but I fall for it again. I want to just stop this shit to get sensitized again or else I am fucked up bad. I am not able to stop myself from the pleasure my way of masturbating does, how do I reduce the dangers here, If someone can help. Also I didnt masturbate today out of fear, so consider this my day 1