英语作文自己写的不知道有没有错误,

英语作文自己写的不知道有没有错误,
It is important for us to keep healthy .We should prevent illness and also should keep healthy by enough exercise and reasonable food.
I am always exercise at least an hour every day.After school I go home on foot.At free timeI often do gymnastics.I do not have fast food.I always eat vegetable bacause it is good for our healthy.
I will give you some advice First stop eating fast food.Second do more exercise.Third remember to have breakfast every day.