Grad school junk food habits

Hey all! I'm sure that my nutritional woes are felt by many but I feel really stuck in bad eating habits. I'm in class, work, or the library almost everyday and find my food options so limited and way to exhausted to make myself anything more than a peanut butter sandwich for dinner. I don't even have a kitchen so it limits me further. I hate to sound like someone full of excuses :blushing: . Any guidance is welcomed! :happy:

-Stef

Ps is a two mile walk to school - I live in the city - and I have nowhere to store food during the day.