The goal here is to use an attention grabber. Think of it as a way to reel the reader in and interest an admissions officer in what you have to say. There's no trick on how to start a college application essay. The best way you can approach this task is to flex your creative muscles and think outside the box.
You can start with openers such as relevant quotes, exciting anecdotes, or questions. Either way, the first sentence should be unique and intrigue the reader.