With having completed most of my college applications, one thing I wish I had known in advance is the essays are so much easier to write when you focus on what you're interested in, rather than what you think the colleges want to hear. Obviously still take the prompt into account, but writing is so much more enjoyable when you focus on your voice and own interests. Additionally, it'd be pretty helpful if I didn't wait until the weekend before the application was due to start a majority of my essays. I got them all done but oh boy was it stressful. I'd recommend for future seniors to only apply to schools you'd want to go to, because it makes it easier to get essays done, and it saves effort.
I find the idea of a college experience quite exciting, although I'm not sure what aspect I'm most excited for. While I know it'll be difficult, I'm quite looking forward to moving out, meeting new people, and taking more specialized classes so I can dive deeper into my intended major. The only downside of leaving for college is I have to leave my cat home, but with luck I can move off campus and bring him with me before long.