I stabbed a bully in the hand with a pencil what should I do?

I would tell a teacher about it, maybe tell them that you're afraid he may try something.

You shouldn't be afraid of the bully if he started it first. Me myself get bullied too I don't find it wrong if he started it first and you stab him back just because you want to protect yourself. Bullies did wrong at very first but you only stabbed him once. No big deal. Tell your discipline teacher or parents to help out with you.