I've seen too many times in real life people who do arts and want to try to sell it not understand that once you switch from a hobby to a business, you need to spend at least 50% of your time on the business/marketing/logistics/etc side of things, hence failing miserably. The best possible outcome that I've seen is that they miraculously hit a nerve on the first hit, become famous, and at some point realize they need to pay taxes and do so in a decent timeframe.

So I found this article great to explain those things, and also how it's not just "you", but it's "the part of you that people need to buy" to make it into an actual business the thing that it's important. I'll be sharing it a bunch, I'm so happy fnnch wrote this!