Why do some men make the decision of commitment before enjoying sex with other women first?(READ ALL),...?

Wow it sounds like you have a lot of issues going on. There is no reason to have sex with 200 women (as if you even could. Hugh Hefner is probably the only one who could do that volume). I think you need to realize what sex is and what it means. It's not just looking for a place to stick your penis. It's not just trying to get off (you might as well masturbate instead). It's not just to see what sex feels like.