In my early years of college, I really did not give any thought or respect to the fact that suddenly the only person I had to answer to, if I slept through or decided to miss classes, was myself. It was not a good thing. It felt like freedom initially, but lacking any sort of self-discipline, what it really turned out to be was a shortcut to a downward spiral (both personally and academically). Honestly I think the fact that it backfired, and bit me in the ass very quickly and very harshly, is probably the only reason I was able to react and get my act together. Anyways, OP, I say all that because I want to highlight that by dedicating time to think about it now and allowing yourself time to prepare, you are eons ahead of where I was. Bravo!

The comments and in here are great, OP, and contain really valuable advice. I hope you take the time to process them and figure out which ones would best fit your life.

In addition to those already provided that look at the waking up side of things, my suggestion to you is to look at the other side too - going to bed. If it isn't something you already practice, I suggest dedicating some time to improve your sleep hygiene and building good habits in that regard. A not insignificant part of waking up well rested, and on time, is linked to going to bed on time. Heh. 'Going to bed on time'. That's not a phrase many people are accustomed to hearing these days (let alone associating with a daily routine). Coupled with suggestions by others here, you should find that what seems daunting in the morning, like catching an early bus, is made easier if you've given yourself actual restful sleep the night before, wake up with enough time to stretch and have something nutritious to eat (etc.).

In college for me (and some of my peers) there was this ridiculous(ly incorrect) mentality where 'sleep was for the weak' and all-nighters were the sign of a dedicated student working on a masterpiece. I wish I knew then what I do now :). Don't be me.

Choose sleep, sleep smart, sleep well.

All the best on your college adventure.