Welcome!
I think that "borrowing" stuff from your mom is going to get you caught red handed sooner or later, and is a dangerous long term strategy. Parents are smarter than we think, and she'll eventually notice that things are missing and wonder why.
Also, hiding things in your room may be dangerous as well, especially with your dad poking around.
I don't know what the answer is for you. As Cindy said, slow down a little and maybe we can help you.