Okay, and what do you plan to study in college? Different courses will require you to be on campus for different amounts of time - science and engineering courses will often have lab sessions, while arts and humanities courses require independent study. While you may be able to study in your room and keep your bird company, you're going to need to put in library time too. College is also meant to be fun and there are usually loads of social activities on offer - sports teams, clubs for different hobbies and interests, groups learning new skills or with common interests. You are (hopefully!) going to make friends and will want to socialise with them in the evenings. You may want to take inpromptu trips. You may need to work during the holidays, or gain work experience in your chosen field. Friends of mine (at UK universities) have done placements/year abroads in Ghana, South Africa, Japan, Germany and New Zealand - it's surprising just how much you can do!
Do you have an idea of what you want to do after college? Again, some jobs are going to require you to work long hours/irregular hours and may involve travel or relocation.
The thing is, birds have the potential to live a long time - even the little ones. The next decade of your life is going to involve lots of changes, many of which you may not be able to predict. You've got to think about what's fair on both you and a potential bird. It's not fair on a bird if you're unable to spend time with it or can't afford vet treatment. Equally, it's not fair on you to miss out on rewarding, enjoyable and/or valuable things or potential careers because you're responsible for a being with toddler level needs.
It might be worth seeing if you can foster or provide a safehouse for a rescue. You'll be able to have a bird in your life, but hopefully on a less permanent basis. Otherwise, you might like to consider small mammals - when I was your age I had pet rats which I adored and who were intelligent and affectionate but with much shorter lifespans.
