new MLIS student

Hi! I'm starting the first class of my MLIS program in a couple of weeks (going back to school part-time to expand my career options, have been working fulltime in a science lab and parttime as a library circulation clerk for years). I was wondering if anyone has any tips for someone starting out in the field for getting their bearings. What should I watch out for in my first classes? Is there anything you particularly valued from your library school experience, or anything you didn't do that you now wish you had?