What should I do if I often cheat my sister?

In fact, this is the trauma caused by parents' words and deeds to their children's hearts.

You can consider improving your situation, being doubly kind to your sister, caring about her from small things, making him closer to you and letting him know that you love him.

Then tell him step by step, explain the changes of these parents, tell him that parents know that their problems are changing, and also tell parents to gradually care about their sister from bit by bit.