My many faces

I was training last night and made an astonishing discovery, I'm using not my body correctly and as a result I'm missing simple things and my game is suffering, especially my game on the bottom. The thing is in BJJ your hips are everything if they aren't chances are you are losing. When you have been dependant on your arms all your life as I have, you sometimes forget your hips are required to move in BJJ. My hips have gotten so tight over the years it's best to them as a unit and not individually. No instructor will tell you to sweep your opponent then hold him as you transition and settle in to top position, it goes against the point of sweeping as we know it the whole point of sweeping is to disrupt the opponent's balance and use the mometum from him falling to come up. However, that has never worked for me, but I guess that's the nature of sweeping from turtle when you don't have mobile hips, since I don't have the best hips I often end up on my bac