How can i lose weight?

well i need to lose some weight and the only way i can do it cuz of money and **** is to eat a bowl of cereal once or twice a day thats all but i would be workin out for 2 hours a day to help keep my muscles up so idk what to do and eat salad and fruits its not cuz im poor lol its cuz my family buys unhealthy food and this is what theyll buy me