Discipline or Double down

There's a simple rule that will ensure you reach your potential.

Make a commitment to yourself that you'll only quit a project by swapping it for something harder.

If you can't do that, then stay the easier course. By implementing that strategy, you notice two things. You'll start committing to more realistic and well-defined projects and goals, and you've anchored a much harder version of reality in your mind, which makes the current task more bearable.