<p>Ask your teachers to use more verbs than adjectives. Ask them to provide examples for every point they make. That will make it 
Yale doesn’t need “the best student I’ve ever had!!” because they know that next year the same teacher will use the same words for somebody else. Yale needs the student who did that and that, “impressed me when…”, etc. You will probably agree that information conveyed this way seems much more trustworthy. </p>
<p>Best of luck!</p>