Do you need proof that someone is harassing you, before getting a restraining order against someone?

So I have a few questions and need everyones opinion…

1. Do you need proof of harassment, to get a restraining order against someone?
(My mom said, witnesses are good enough- I don’t think so).

2. Can you keep the restraining order private from the other person?

Honestly, I don’t want the restraining order, my mom wants it
(against my ex- the guy I talked about a lot in previous questions- I said he was my friends ex, but he’s mine).
And I have a feeling everything is gonna be my decision ult, but i’m frustrated because my mom’s making it her decision. Were trying to break a lease and the landlord said that was how to break it.