GRE from home

Hey I am giving the test from home soon and I have a few (silly-ish) questions! Would appreciate any advice/assistance

1. I have a habit of closing my eyes when I am rephrasing a paragraph or remembering the meaning of a word. Is that an issue? Because Ive read that you cant look anywhere
2. Same with reading passages. I tend to move my lips a little! Is that allowed?
3. Do we need to cover all the mirrors in the room? I have a dressing mirror but it’s not visible from where I sit! Will I still have to cover it?
4. Any advice on the whiteboard measurements etc?

I have been reading a lot of stories about scores getting cancelled. I can’t give the test from the centre. Any tips on how can I avoid that?