One step at a time, only one step at a time. That is why you need to do one first, if you don't know what to do, there you will decide to do all which you will never start. So one step at a time.
One step at a time, that is why every long journey has to start with a step. You see your friend doing something and you also want to do that same thing, it's not wrong though but you need to focus on the one you are doing and master it. If you want to do all, you will end up doing nothing. One step at a time.
Truly speaking, it is one step at a time. One needs to be focused, plan and envision to achieve success. "Many actions at a time leads to total failure".