Have a good run for (one's) money informal
To have a successful or joyful period of time
The player had a good run for his money at Barcelona, it is time for him to leave the club and look for new challenges.
Before the outbreak of the pandemic, the business had a good run for its money.
someone will be successful.
Extremely happy
Be very happy
The verb "have" should be conjugated according to its tense.
Try to avoid to change something because doing something else could make things worse
I could have changed my answer, but I decided to leave well enough alone.