Tips for men with little to no erogenous zones?


So I have been trying to get into prostate stimulation but I am having some trouble.

It seems I have a lack of feeling sensitivity in general. For example, can’t be tickled anywhere aside from the soles of my feet.

This leads into problems for me with getting there with prostate play. A seemingly vital step is to stimulate all your erogenous zones aside from your penis to help you along the way, but in my case, I lack sensitivity in all of these places.

Is there any way to increase e zone sensitivity or sensitivity in general? Or maybe alternatives to e zone stimulation that I could do?