A typical professional would probably be at the level of Hua Xueyi, who could be considered a small prodigy.
Her talent was first-rate, and she carried with her a tragic past and the hopes of her entire village, truly fitting the standard protagonist identity... In fact, her friends often teased her about this.
With her (life-risking) hard work and her not-so-bad talent, she should have been able to reach her peak within three years of graduation, becoming what is known in the industry as an ace figure and carving out a name for herself... By that time, she should be attempting to break into the third tier!