Hi Alley, I'm a dentist!
I'm sorry a dentist won't come to your home but I'm thinking that you shouldn't worry too much. The broken tooth is most likely either decay or just a broken filling. The tooth breaking is nature's way of letting you clean it easier. If it isn't hurting then don't worry about it. If it were to start hurting, then I bet you could get some help.
I know its sharp, but go ahead and chew on it anyway. You don't need to avoid chewing on that side. Dr. Laurie says go for it!
Please write if I can be of any help sweetie.
Laurie