unhealthy foods

All we have are fatty foods and foods with so much grease on them at my house and it's so unhealthy. The closest thing we have for healthy food is 2 almost rotten bananas. I've asked my parents to please get more healthy foods for breakfast as well, but they never have. Not even cereal. 
They won't let me get a job, so there's no way I can get money to buy things myself... I don't know what to do. I don't want to live my life off of unhealthy foods when each bite is bringing me closer to diabetes 😓