It is always advisable to talk to a tax professional if you're in an unfamiliar situation. That said, you want schedule C if you're doing them by hand. It's going to be business income if you're using tax software.
Schedule C is the way to go. There's no need to worry about complicated paystub/payroll stuff unless you're filing taxes as an S-Corp or C-Corp.
Glad to hear that you found a lot of useful information on (). Thanks for sharing your experience! Car Games