Many moons ago I learned about "The Secret".
I used to go to the original Yankee Stadium every chance I got, and I would watch the Yankees' Big Three rotation---and I saw what they were doing and how they were doing it. They would drive off the lower half of the body, using the legs, the hips and the torso in one continuous (and, it seemed to me, seamless) motion, creating a nonstop flow of energy all the way up through the shoulders into the arm and the hand. They were generating the power behind their pitches and in doing so taking a lot of pressure off those extremities so they could throw harder and faster with less effort---even Eddie Lopat, who was not a fireballer.
I watched them, I saw exactly how they were doing it, and I made a note of it and started working on this on my own. As I practiced this essential element of good mechanics---and believe me, this is indeed an essential element---I found that I was doing exactly the same thing they were doing! I wasn't a fireballer either, but I could feel that I too was throwing harder and faster, and because I was an honest-to-gosh sidearmer my delivery had more snap and sizzle to it. Not to mention the crossfire I had picked up; it gave me twice as many pitches as I already had. And later on, at age 16, I learned how to throw a good slider, courtesy of said Eddie Lopat who had a good one---and I ended up working with him for almost four years; what I learned from him was priceless.
One thing you would do well with is the "Hershiser drill", which aims at getting the hips fully involved and thus speeding up your lower body action, which in turn will increase the overall speed of your delivery and follow-through. This drill needs no special equipment, just a fence or a wall, and it will do wonders for you. :baseballpitcher: