There must be hundreds, maybe thousands of different ways to shoot a bow, if you look all over the world and throughout history. If a person has a very unorthodox style and is happy with it, there is no reason he can't sit at our cyber-campfire with the rest of us. I'm not sure, based on your posts, that you are unhappy with the way you shoot the bow and want to change anything, or whether you just wanted to mention to us your own unique way of shooting.
If you want to change something about the way you shoot, it's kind of like opening Pandora's box. Whoever you ask is probably going to deconstruct whatever you're doing now and build you a new method from the ground up, based on whatever style has worked for them and whomever they might have taught in the past. Not exactly like joining the Marines, but there are some similarities.
There's no guarantee that anyone's method is going to make you a better shot than you already are, although based on prior successes, it probably will. Also, there are enough differences among the methods different instructors are going to teach you that some people will benefit more from one, while others will benefit more from another, even though all of them fit more or less in the same western traditional archery tent.