What should I say if I want to describe myself as different from before?

Don't cry, don't make trouble, don't be sad or happy, calmly deal with Zhao Shiyong's irresponsible mistakes, and say without emotion: Let bygones be bygones, it won't happen again. I really can't express that kind of heartache when she stepped on the train, unloaded all her strength and leaned against the carriage, and finally collapsed and cried. The film deliberately did not let out her crying voice, and the rumble of the train masked the heartbreaking expression. No matter how sad, it's just silence.