Does my diet seem healthy, am i eating too many calories?

Your eating plan sounds excellent. I estimated 1400-1700 calories for the day depending on the portion size of the cereal and dinner. If you are trying to lose a few pounds this is perfect. If you wish to maintain your present weight then you could add a treat or some cheese. Eating as you do and getting exercise should help to boost your immune system and keep you healthy. If you like you could also add a multi vitamin just to cover anything you might be missing.