In terms of work:
Eating well
Rarely eating out (real difficult to do but sometimes I feel like crap afterwards)
Sleeping well/safety naps on 24's/48's
No energy drinks (coffee is okay in my book, in moderation)
I know that last one is a bit of a stretch but I've been working 24's BLS...
Like what the others said, if you can afford without a job for a little while to finish up, then by all means go for it, it can take off a lot of stress and free you up to study and knock it out.
But if you cannot and you feel like your current job can't be too flexible on hours, it wouldn't...
Thought I would add some input since this post caught my interest. I've worked with VH for almost two years and we're in the middle of the Falck transition. For a bit of background we run out of stations in:
Sacramento BLS CCT
Ukiah BLS ALS
Petaluma BLS ALS (backup to Fire)
Santa Rosa BLS CCT...