Get prepare, do researches, study your competitors, subsitutes and YOURSELF!
Why risk? Is it neccessary?
"On the battlefield, you don't risk for victory; you are there to confirm your victory!"
What if there are unknown factors or risk?
"Why worry? aren't you prepare for everything and anything?"
"The first plan doesn't work? goto secon plan, third plan, or 4th plan!"
Stay calm, engage problems slowly. Why rush to the problems when you can't solve it?