i have a very hyper 4 year old son who gets very aggressive towards me, when he doesn't gets it his way. if we are in the store and he wants something and i tell him no, he starts screaming and talking back to me then he starts stamping and hits my hand when i hold him. hes also aggressive at home, he throws his toys, and sometimes he gets so excited that he hits himself but also when i yell at him when he did something bad. i send him to his room, because i just dont know what to do. and thats when he gets even more angrier . he cries and screams. he disrespects me in anyway and doesnt listen at all. what can i do to make this situation easier to both of us.