DoorDash tax question

I’m struggling to file my taxes and I’m clueless on what to do lol. I had two regular w2s and the DoorDash 1099 form and it’s asking me what kind of income it is (pictured). Everything I could find online tells me to put Schedule C but I have no idea what to do after that. Any guidance would be much appreciated.

I’m struggling to file my taxes and I’m clueless on what to do lol. I had two regular w2s and the DoorDash 1099 form and it’s asking me what kind of income it is (pictured). Everything I could find online tells me to put Schedule C but I have no idea what to do after that. Any guidance would be much appreciated.