Should I do this when I'm writing my essay?

Should I write, “I love giving back and plan on joining The University League when I am admitted.” Is the when I am admitted part too cocky or too confident? Should I stick to something less active?

Is that an undergraduate club or, like, closer to an alumni donation group? The former would be fine, but especially if it involves giving money, it might not come across as very sincere if you’re using your membership with this league as “leverage” to get in.