Doing something hard deliberately requires discipline. This is especially true when you are starting out to do something. And it feels like shouting out into the void and seeing no progress. One way to think about discipline is the training period for your brain to create a dopamine feedback loop. The need for standing out and the pursuit of perfection is an enemy during this period. But after passing that period, it won't feel like you need to put in a lot of discipline to continue. Moreover, it becomes effortless with time. The next phase involves progressing and making it harder, although it may not feel that way. And that's when the Goldilocks Rule kicks in. This rule states that humans experience peak motivation when working on tasks that are right on the edge of their current capability. Understanding the "why?" behind that task also factors into this a bit. The incentives have to be aligned in some way for a habit to manifest.
Just. Do. It.