I was a disorganized night owl in school, too.
One year I decided to do things properly. Every morning, I got up really early, ate some cereal, and headed to a quiet corner of a library. There were a few secluded desks hidden near windows at the ends of book stacks. I didn't bring a phone or a computer. Just my text books, a few notebooks, a print out of any assignments, and some pens. I'd read relevant chapters before attending class, and I'd attack homework as soon as I received it, rather than wait til the last night. I probably spent 3 hours there, each day. Afterwards, I'd be awake and alert for class, and lectures would be smooth as I'd already introduced myself to the material.
It was by far the easiest time I had at school.
After that year or so, though, I went back to my inconsistent nighttime ways. Oh well. Still, if you're looking to smooth out your academic life a bit, I can recommend settling in at a library desk every morning at 6am or so.