Zenith of (one's) career noun phrase
The peak or the most successful point of a person's career.
When he reached the zenith of his career, he found out that he had lung cancer.
I was at the zenith of my career when the scandal broke.
He passed the zenith of his acting career.
someone will be successful.
A go-getter is a determined and ambitious person who works very hard to become successful without being afraid of difficulties and challenges.
One has the potential for being successful in the future ahead.