I need advice on this business plan.

At the moment I am currently looking to sell products online as a side hustle to make money, but also for the fun of it.

Goal: make $1000

Current plan: Create & Sell products worth $10 to 100 customers, or $1 to 1000 customers, $100 to 10 customers, etc…

Current problem: I don’t have any ideas on what to sell, how I would find customers, and how to sell products online to begin with…