Please upload to the portal your income and expenses related to your self-employment. Maybe you track this on an excel spreadsheet, a note on your phone, a piece of paper, a bank statement, or a pile of receipts -- I can handle any way you choose to upload! Just keep in mind the more organized your documents are, the less time it takes me to go through it.
Not sure what deductions you can even take? Check out this guide for general self employment deductions: General Deductions or this guide specific to performer/artist deductions: Performing Artist Deductions