First, let's define what a "proper and effective body mechanics - body method" should be. To me, it means "body unification" that - All body parts move and stop at the same time. - Body push/pull limbs. - Shoulder coordinates with hip. - Elbow coordinates with knee. - Hand coordinates with foot. Let's take blocking as example, if you can move your body to be outside of your opponent's striking path, even if you don't block that punch, that punch won't be able to hurt you. So the 1st step is to train how to block a punch without using your arm. How can you do that? You use your spinning footwork to rotate your body. After you get used to do this, you then let your body to pull/push your arm. Your whole body then function as a "whip". That will be the "proper and effective body mechanics" for your blocking. The roundhouse kick can be another good example. You first train how to spin your body. After you feel comfortable with it, you just let your body to pull your leg. Your whole body then function as a "whip". That will be the "proper and effective body mechanics" for your roundhouse kick. Can you learn this all by yourself? Just - relax, - spin your body, and - let your body to pull/push your arm/leg. The day that you train how to use a sword without holding a sword, the day that you will understand what a "proper and effective body mechanics - body method" should be.