I Am Terrified And Am Considering A Restraining Order, Do I Have Grounds?

I recently (last Monday) went full no contact with my abusive family members after moving out. My mother has began contacting every local store (within 60 mile )in a coffee chain that I work at. She also managed to contact my landlord with my exact apartment number asking go speak to me.

I am genuinely terrified to leave my home or show up for work.

For more context:

I am in NC and my mother is (hopefully still) in Texas.

I (F22) recently moved out of my grandparents house after about a year of single-handedly taking care of my elderly grandmother following my grandfathers death. After he passed, my sister (who lived across the country in the same town as my mother) made moves to have their will changed so that she would receive everything, and the deed to the farm was signed over to her in August.

I begged for help as I am chronically ill and not suited to single-handedly take care of an elderly woman with dementia and many health issues, and finally got social services involved at the end of July. Around August/September, my sister informed me that she was moving in January and I needed to be about of the house.

Upon leaving, I blocked them all and deleted my Facebook as it was their primary way of reaching me.

My mother (who I believe to still be across the country, but does have the means to travel if she wishes) has begun harassing all of my potential workplaces asking for me or my partner. She reached out to my landlord. She reached out to my partners’ mother.

I am, once again, terrified.

Would I be overreacting by pursuing legal action?

(Edit, if anybody needs anecdotal reasons to be fearful)

She is psychotic. She threatened to kill me multiple times throughout high school, would purposely swerve on the highway to scare me, would talk about killing my stepdad. She financially and emotionally abused my sister by filing fake police reports against her and using her personal information to take out accounts for credit cards and other services. She once threw herself across my sister’s car and told the police my sister hit her and ran. She has the money to travel and works from home. This is harassment.