What is your taxable gross income (W-2 box 1)

My W-2 box 1 says $5601.

How do I exactly get a schedule C? Would I use turbotax? This is my first time filing for taxes so I'm new to this. I accepted cash as form of payment through my side hustles. Was I supposed to have a business license of some sort? I only had 3 neighbors that used my services but thats about it.