Do you formally train? Because its something a trainer should be able to teach you easily.
I don't really know what the "monkey defense" is, but what I use looks like what Rampage uses so I think that what it is. All it is you put your arm up and cover your face to defend the punch and roll into the direction of the punch. So if the guy throws a left hook at me, I raise my right arm up and turn my shoulder to my left. That's it. I use it a lot because it puts me in position to throw a counter hook.