I also went to a community college and started out part time in the fall of '99, along with working at a hardware store from 4-9 on most nights. I did fine with that, other than the normal infections that I would get so I started full time in January 2000. I had also moved closer to the college so that made it easier too.
Anyway, I got to the point where I was going to college full time and working two jobs (one at a gas station and one at a video store). I did miss a lot of classes with being sick but all of my professors knew that I have CF (because I told them when I first started taking each class) and they were all fine with me making up work and exams. I got really sick in April 2002 (right before graduation) and had to go into the hospital and have surgery to stop bleeding in my lungs. I got better, was released from the hospital, and was back to school the next day because I only had about a week before finals. All of my professors that semester were willing to let me take the exams later than everyone else so that I could have more time to study but I told them that I wanted to take them on time because I had a wedding that I needed to finish planning.
I did all of my final projects and final exams on time and passed all of them. The only regret that I have is that somewhere along the lines, I could have done a little more studying because I was only .05 away from graduating college with honors.
Anyway, I know that a lot of CFers cannot handle this schedule, but if you think that you can, it's the best way to go so that you're not in school forever. I graduated in May 2002 with an Associat's degree in Business Administration and I'm glad that I graduated then because I got married, sold our place that we were living in, moved 90 mins away from where we were, and bought a new house. I only got sicker after that and there is no way I would have still been able to be in college if I didn't finish when I did....it would have been way to hard with how sick I was getting.
Good luck!