I think I know what you're sayin... if I do this is my advice
Roll Higher!! (u might be rolling incorrectly)
cuz I think I had your problem too
and maybe its becuz u started incorrectly (the collapse) and that caused u to have
lack of momentum which is probably y u couldn't continue to your second mill
also, to get more momentum, straighten your legs to swing them harder ...yea
or just go to this place...
www.angelfire.com/hiphop2/mothergoose and read the part near the end or the whole thing if u had the beggining (collapse part) incorrect
but post a clip please
peace