Name the thing you sell
Attention can be sold to a sponsor. A skill can be sold as a service or a product. A community can be sold as a membership. Pick one for the next 90 days. Write what the buyer gets, what it costs, and how they pay you.
Then separate the money from your personal spending. Even before an LLC, a separate account and a simple list of invoices will tell you if this is a hobby with merch or a job.