Today, I discovered, after years of being grounded for losing my belongings, that I didn't actually lose anything. Instead, my mom drunkenly admitted to tossing my stuff away and then punishing me for it whenever she was mad at me. FML
OP, I wish you the best in this. It's passive aggressive, it's mental/emotional abuse. I hope you can find a good therapist that you can trust and confide in until you can remove yourself from that toxic situation.
Parenting at its finest.
Your mom is a freaking douche. I'm sorry OP!