Not sure where to post this

I have a prescription for 1mg Ativan. I am very scared of getting addicted, or of doing damage to my brain by taking it too much. I am really struggling with anxiety, depression and insomnia.

I took one on Tuesday night, and it really helped.

How long do I need to leave between taking it so that I do not start building up tolerance/get addicted?

If I took one every 4 days, for example, would that be ok? Or is it fine to take one tonight?