Still brand new to this, but have pretty much hit the tipping point from "unsure if enough work" to "too much work" immediately.

If the goal is to be on your own, one thing that is incredibly useful is to build a network of people who would be in a complimentary business to yours, are likely to stumble across work that you would be able to do, and aren't in the position to do themselves. For me, that's working with a former coworker whose business is data science + the strategy around it, or a larger consulting firm where I used to work that has projects come across their plate for steady clients that are too small to be worth their time, but can be quite lucrative for an individual.