You mean like how much of an idiot I was as a kid?

[ Xue Yang lifts his left hand to look at the stub where his pinky should be. ]

All I need to do is remember the Chang clan shitting themselves and begging for mercy and it stops bothering me.

[ Which isn't actually correct--even with his revenge it never really stopped bothering him. But Xue Yang is so out of touch with his emotions regarding things like that that he's completely unaware of how much they still affect him. As far as he believes, he's telling the truth. ]

You should get revenge for whatever's bothering you. You even came back to life and have a whole new chance now.

[ It's genuinely well-meaning (if absolutely terrible) advice. ]