I'm a Junior at UC Davis. It isn't easy in a cafeteria but it can be done. At our Dining Commons my fall back was always the Tuna Salad or Egg Salad at the Salad Bar. I check the ingredients and they were pretty much Primal (I'm sure the mayo was optimal). Usually there was spinach at my salad bar with some cucumbers and broccoli so that was easy enough. Breakfast could be done with some hardboiled eggs and a piece of fruit, which may get old. Lunch can be tricky because it usually ended up as some grain based meal so I had to hit the salad bar. Dinner usually had a grilled or baked piece of meat and I would just ask for no sauce or mashed potatoes. In your room...may be challenging. If you can find a decent primal jerky then all the better. There was once small kitchen for 3 of our dorm building so we could hardboil some eggs and leave them in our fridge if we wanted. If you can find the menu ahead of time online for the dining hall, then I'd maybe suggest toying with intermittent fasting on meals that may seem impossible to get around.
If you have no opportunity to buy decent food...family loves sending care packages. Ask for some canned salmon, dehydrated fruit, and some more nuts. When you get an apartment life becomes easier.