Prone Masturbation training

I guess the question came for sure hundred of times already, but I still can't find an answer to it.

If I want to become as permanently limp as possible, knowing that prone masturbation is reversible and permanence is more of an utopia, how often should I do prone Masturbation, for how much time each sessions, and with what technique to achieve a state where it's nearly impossible for my dick to get hard anymore? Like how would a limp dick training would look like in detail?

I am also open to DM's if someone is wishing to guide me through this in person. But maybe we can share some ideas about it here in the comments:)