Confused about withholding for non-resident states

So I live in SC and work for a company in NC. I have 3 children and I’m wondering how I do my withholding. Do I withhold 3 from the state I live in, work in, or both? I’ve never worked in a separate state so this is new.

I worked the first 10 months of the year for Lyft (1099) driving between NC & SC, and the last 2 months of the year working for a company located in NC. How would I file my state taxes in this case?

posted