Doing well on essays is part of doing well in school, and doing well in school leads to a better life!
That line is particularly appalling and represents one of the many things that is wrong with our education system. That logical progression is what encourages people to cheat (plagiarism and paying for essays count).
Maybe try something more like "Getting feedback and incorporating it into your thought and work process will help you get it right the next time for your whole life."