Learning to write well in college means learning (or re-learning) how to write clearly and plainly. Now that doesn' t mean that plainness is the only good style, or that you should become a to spare, unadorned writing. Formality and ornateness have their place, and in hands complexity can take us on a dizzying, breathtaking journey. But most students, most of the time should to be sensibly simple to develop a baseline style of short words, active verbs and relatively simple sentence clear actions or identities. It's faster, it makes arguments easier to follow, it increases the chances a busy reader will bother to pay attention, and it lets you more attention on your moments of rhetorical flourish which I do not advise abandoning altogether.