Religion Help? Free Will vs Destiny?

there is such thing in my mind as destiny and free will. one is destined to die at a certain time, and that day never changes. but on that day you can unintentionally change how you might die. for instance you wake up and decide to stay home, so instead of getting hit by the car that ws destined to hit you, you instead die of a massive heart attack in your home. your destiny is always changing when ever you do something, or think something, or don't do or don't think something. so instead of that car hitting you, it since it was destined to hit something that day, will hit someone or something else. -- as for god knowing everything, i don't think so, just maybe when your death day is here.... maybe. just remember there is such thing as "God" just not religion. just worry about doing the right thing and not to piss off whatever is out there.