So I've been practicing backflips and wallflips lately. I can do them perfectly on a trampoline. Tho when I land on the ground, like from an elevated spot or off a wall my landing always seems very hard, hurting my toes and feet. Is it something I'll have to build up? I am absorbing the fall well with knees and all. And also. I usually land with my back parallel to the ground. As soon as I spot my landing. My torso stops rotating, just my legs then come around. Making for an awkward landing. How can I practice getting able to land straight up. Perpindicular to the ground? I think it's also inhibiting flat ground back flips. Thanks for help.