Can I ask what office job lets you work night shift? That actually sounds like a dream job for me. Anyway, do things you want to do for you. Forget about everyone else. I go hang out at the coffee shop with my laptop and I can sit there for at least an hour, it makes the entire day better and makes me feel productive lol! Go to the beach, eat healthy meals, meditate. Do you have any friends that you just hang out with, or go to a restaurant with? You can even go to restaurants yourself, and just bring a book with you. Go chill out at a park or sign up for a group meditation class in town. Just look around your city for things to do.