Take a knife you use daily like a kitchen knife or your belt knife and hold it in your hand. Keep the arm in one line (while relaxed) and start to move it in circles around your body. Use your fingers and wrist to keep the blade facing along the movement and do this without looking at the blade. Do this overhead and at your back and this will help in your relaxation and in making the knife work for you. Remember to do this also in grips you are not used to. If you always keep the knife facing forward than switch the grip from time to time so you will learn to use the tool in any way possible. You don’t know how you will have a chance to pick it up next time.