I don't know if I'm using the Androextender correctly

First days I really tight the head of my penis with the androtop but in the first hour the head of my penis was like blue and I was scare but then I read that that don’t suppose to happen soo then I just put my penis in the extender with really low pressure and my penis don’t get out of the extender but then after hours I don’t feel nothing. No pain, no stretch, No blue head soo I was scare too because I don’t know if I suppose to feel something.

And really sorry for my poor English. This is not my principle language.