Self employed

I have a similar situation, but somewhat different. I receive payment each month of $1650 for a company I work for. It is virtual work and I score assignments and support teachers in a credential program. I was paid with a1099-NEC but I’m not self employed. I didn’t think that “hobby or sporadic” applied to my situation since it is ongoing. I signed a document that indicates I may be considered an independent contractor. Am I then considered self employed?