They obviously didn't try:
Taking away all your personal possessions, TV, radio, computer, telephone, newspapers.
Confining you to the house or your room, shuting off all contact with the outside world- including withdrawing you from school, and teaching you with booklets.
Severing your contact between you and other family members.
Punishing you with OP for looking out a window, speaking or moving without permission.
Taking you down for minor infractions.
Cutting out all snacks and feeding you rice and beans for punishment.
Making you earn points to trade for condiments, toiletries, and interaction with them.
Hiring a body guard when they couldn't be at home with you.
Are you suggesting that your parents couldn't have done these things? How would it have been for you if they had?
They actually could've done a much better job themselves, had you been worth their time and effort.