Me raging over nothing and wanting to kill myself

My dad.

Me and my dad don't have the best bond. He swears I'm his favorite. But the only things he's ever done was pick favorites and neglect us.

I get in trouble when I asked why my dad doesn't help with anything. For instance my siblings. When my sister left for weeks it was just me taking care of my siblings my dad didn't help it was only my mom but it was still on my back.

The only thing that I can give to my dad is that he wants me to eat and is upset when I don't eat. My mom just accepts it.

My dad gets angry and everything. He also picks when and who he gets upset at. He always singles out my younger brother. He's 10. And he decides he won't get upset when my younger younger brother cries. He's 5. When I smack my brothers or my little sister on the back of the head because they did something very bad he yells at me. But when I don't when I don't do anything he gets upset.

He gave my brothers permission to rename my dogs and keeps breaking promises he makes with me.