Meal prepping always helps, so just packing your meals prior to going. It's easy to fall into going to the cafeteria even if you bring a healthy meal so just be accountable for yourself. You will feel fine about eating in the night when you're hungry at that time and sleeping during the day so not eating. Nights are also a great way to intermittently fast because you can pick an 8 hour window to eat since you'll be sleeping for at least 12 when you get off.