I masturbate a lot and I want to stop plus I shoot a lot of cum and a lot (seriously I eat a lot but not getting any fatter) and a lot and I cant stop and now the evolving of this that it shoots now like a gun bullet and create a puddle of cum in my penis.

I am thinking about creating more sperm cells and semen for my future son that I want to have (at least a twin).

How to stop this. And also is this real when i think of the sons I want to have they come true?