The phrase "go to someone's head" is often used to describe a situation where someone becomes overly confident or arrogant due to success or praise. However, there are several different ways to express this concept. One alternative phrase could be "inflate someone's ego," which means to make them feel overly important or self-assured. Another option is "embolden," which suggests that someone has become overly brave or daring due to a sudden surge of confidence. Regardless of the phrasing used, it is important to remember that success should be celebrated, but it is important to remain humble and grounded in order to continue growing and achieving.