Can you tell me how i could control my 3 yrs old's behavior?

Teach him the beha-: viors you expect & model them. Calmly tell him the consequences for misbehavior & the rewards for " being good" at his receptive language level; have him repeat rules at his expressive level. Be consistent. Learn how to catch him being good & effective use of Time Out to ignore "bad" behaviors instead of reinforcing them with negative or positive attention from "Little People", $12 on Amazon.