Is it a federal offense to throw away someone else's mail?

I'm nineteen, and things at home between my mom and I have been pretty bad, so I decided to unofficially leave the house and stay somewhere safe (we got into a fight at one point, and she hit me in the face). Before I left, I know that I had a few unopened things, mostly bank statements or letters from the corporate office of the company I work for. I came back home yesterday to check in on my mail, since my mom told me I got a package, and the only things I could find were the package and one recent bank statement. I know for sure I had more mail than that, and I think my mom might have thrown my mail away out of spite (it sounds crazy, but, my mom is for the lack of a better word, crazy). I know she had been looking through my mail because she brought up a doctor's appointment that I have in a few weeks when we talked on the phone, yet when I came home, I couldn't find that letter. Is there anything I could do to recover the mail, and have some sort of consequences directed towards my mom?