My trainer keeps telling me to sink my weight into my hips more so I can sit the canter better. When I do, it can only keep it for two or three strides. I am very light-weight and can squat way more then my weight, so sometimes its hard for me to tell if I truly am sinking it in or not. Any tips? I hate going to ride, and I canter and everything is all bump. Then, when your trainer tries to help you fix it, you still bounce around like a doll... =/