How do we reconcile the idea that a person who repents from sin is like one who has no sin, with the impact of sins on sustenance and success, especially if the servant returns to sin after sincere repentance?

A servant who persists in his disobedience is deprived of sustenance and success, as the Messenger of Allah, peace and blessings be upon him, said: "Indeed, a servant is deprived of provision because of a sin he commits." As for whoever repents sincerely and adheres to obedience to Allah, he feels success, contentment, and prosperity, in fulfillment of the Almighty's saying: "And if the people of the cities had believed and feared Allah, We would have opened upon them blessings from the heaven and the earth." Repentance erases sins, and one who repents is like one who has no sin, and Allah transforms his bad deeds into good deeds. Even if a sin is repeated a hundred times and then one repents, his repentance is accepted, and his sins are removed.