If your business doesn't have a formal name, you can just use your name and social security number. See more information below on how to report your self-employment income.
https://ttlc.intuit.com/replies/4801198
*** I am NOT a tax expert. I am a seasoned TurboTax user, and volunteer to provide assistance to TT users. Nothing I post is to be considered TAX ADVICE; I bear no legal liability for responses.***