If you got paid for work even for 1 day you are self employed. Here are a couple links
Here is a Turbo Tax FAQ Are you an employee or self employed?
https://ttlc.intuit.com/community/self-employed/help/am-i-an-employee-or-an-independent-contractor/0...
Are you self employed?
https://ttlc.intuit.com/community/self-employed/help/am-i-considered-self-employed/00/26535
