Nicolas Cole argues that freelancers grow faster by solving one problem deeply instead of offering every service. Spreading yourself across multiple jars fills none of them. Pick one and fill it completely.
Chapters
Nothing will accelerate your progress and growth more than just immersing yourself in learning about the problem that you're trying to solve, which goes back to fundamentally why so many freelancers struggle, because so many freelancers don't actually give themselves the time to immerse themselves in one problem. What they do is they say, "I provide every service that solves every problem." Okay, which jar is gonna grow faster? If every day you put a penny in one jar or you take that penny and you spread it across 10 jars, who's gonna grow faster? It's the person who focuses.