I got a touring bike with alot of gears. It has 9 in the back and 3 in the front. On my bike ive been shifting by pushing the shifter however many times I want to gear to to up or down to. So if I wanted to go up 5 gears I push the shifter 5 times really fast. Will shifting too fast mess up the back gears or anything? Sometimes I might want to go from a really low gear to a really high gear as fast as possible.