Straddling the Line Between Reliance on God and Personal Responsibility

If God decides and knows everything, what do I have to lose by walking through a highway blindfolded? God makes people sick. If so, should we try to undo that via prayer? Perhaps he should only pray and not seek medical attention? Can someone be obese and guzzle steaks and say “if the Almighty wants me to die then I will die?” What about the major political quagmire in Israel today regarding the conscription of yeshiva students? A thoroughly entertaining discussion on the crossroads of what we do and what God does.