An idiom describing forgetting the last relationship and starting a new life.

Abandon the old and welcome the new: discard the old things and welcome the new beginning.

Rally: figuratively speaking, after the failure, rectify the strength and prepare to start again.

Make a comeback: a metaphor for regaining power after losing power.

The second time: it is a metaphor for couples to get back together after separation or breakup.

Make a comeback: Metaphorically speaking, organizational strength swoops down again after failure.

Turn over a new leaf: correct your mistakes and start over.

Make amends: completely correct the mistakes made before.

Dead trees meet spring: dead trees meet spring and regain vitality. A metaphor for a dying patient or thing coming back to life.

Turn over a new leaf: clean up old ideas and change the old look. Metaphor is that the bad guys completely repent.

The prodigal son turns back: what is commendable is that those who have not taken the right path and then turn over a new leaf.

Rejuvenation: refers to the re-development and prosperity after a period of backwardness, recession and silence.

Confession: I quickly changed my mind, gave up the previous way of doing things, and completely repented.