question on 1099 NEC

I worked at a school teaching and also started working online teaching Spanish to a school in another state. I was sent a 1099 NEC form vs 1099 Misc but I'm not really self employed. I don't have a "business". They pay me, I don't tutor on my own for instance which I can see this form being useful to use. How do I fill in info when I feel I'm not really self employed by the questions they ask. The "misc" was more to the point, they taxed me a lot and that was that.

Thanks for any help.