To relax and learn to move freely try this. Lie down and sink each body part as you inhale or exhale into the ground. Move the neck free from the head. The forearm free from the hand or shoulder and so on. This in itself has a good effect on you but try this too in class. Have a partner or more step into you or on you and let the body with as little guidence from you find a solution to the question they are asking. Later do this faster and change roles. Remember that even when you give a massage you learn to bring life into a spot (for example) and this can show you how to do the opposite if needed. In everything you do there is something to be learned. Try to type this patagraph with the tip of the blade and than with another part. Do it alternating hands and maybe with the knife held by a foot and so on.
the sailor walk: This is something taken from life you can do to learn how to move. Simply start walking in all directions and let the hips and legs move in all directions as if the ground is moving beneath a small ship in a storm. The torso should not be effected and stay upright but not tense. To add to this, hold a sword or something long over your head or balance a book on the top of your head. (if you can do this on the side of your head call me)