It's not wise to blame our sorroundings for what we are. If you had the strong will to avoid junks, you can have a nice balanced food with little effort.
Their is a misconception that rice and veggies will keep you in shape. But its the workouts and excercise which will keep you in shape. In India we have a certain caste who is purely vegetarian and eat rice only. But still some of them are obese and most of them are out of shape.
It does not matter how slowly you go so long as you do not stop.
Confucious