Deliberate practice is VERY different from "doing the thing." For example, there are plenty of people who take thousands of photographs and only get marginally better with each photo taken, because they simply take the photograph and move on. Deliberate practice is taking the photo, seeing what you like about the photo and what you don't, figuring out what you need to change to make it come out that way, taking the photo again, and repeating the process. It multiplies the speed by which you get better by thousands.