重新做人

chóngxīnzuòrén
to start a new life; to make a fresh start

CEDICT

to turn over a new leaf

Wiktionary

比喻革除恶习，从头做起。

重編國語辭典

Entry Composition

1 重新 chóngxīn again; once more; re-
2 做人 zuòrén
  1. to conduct oneself
  2. to behave with integrity