I've been doing this freelance since 2017 — through high school, through two universities (University of Tulsa for computer science and applied math, then CU Boulder for a B.A. in economics with a focus on quantitative methods and game theory), and through a lot of learning what works and what doesn't for small business owners.
I work remotely from wherever I happen to be — right now I'm abroad. Most of my clients are in the U.S. The upside of the time difference: things get done overnight.