reboot (someone's) life

Translations
перезагрузить жизнь (кого-то)
He decided to reboot his life by moving to a new city.
Он решил перезагрузить свою жизнь, переехав в новый город.
Definitions
To make significant changes or improvements in someone's life, often by starting anew or altering their current circumstances, habits, or mindset.