[ Family ] Open question: My dad keeps expelling me to the basement … What do I do?

Me and my dad recently had a discussion. He told me to stay in the basement for now. He never lets me go to school, go to the bathroom or basically leave the basement. I'm cold, I'm tired and the room smells so bad because of all the stool and urine I made in the corner of the room. I found a laptop here to make this post. Please tell me what I should do …? .