the peak of wellness/health?

I was super into healthy eating before i joined the military, it was amazing, i even got high off it, but i have had a hard time keeping up with it since i cannot access healthy organic foods. I am stuck eating pesticide filled foods and highly processed cafeteria crap, i still have access to organic spinach and all my teas, i can still make veggie drinks but with unorganic produce, i wash it but i still feel gross about it. So my current situation aside, how healthy do you think a person can become?, what can a person achieve?, is there a limit to how healthy one can be?, i have made it my mission in life to become the healthiest person alive, i want to push the boundaries of health and wellness and see what will happen.