yourselfLiterally means “you yourself.” 너 자신을 is used when 너 자신 is the object of a verb, while 너 자신한테 means “to yourself.” The phrase emphasizes the person being referred to.
KO: 다른 사람과 비교하지 말고 너 자신을 믿어.
EN: Don't compare yourself to others; believe in yourself.