(have) the world at (someone's) feet

Translations
весь мир у (него) под ногами
After winning the championship, she had the world at her feet.
После победы в чемпионате весь мир был у нее под ногами.
Definitions
To be in a position where one is very successful, admired, or popular, and has many opportunities available; to have achieved great success or influence.