How is free will possible if everything happens for a reason?

ReallySlowComputer Asked: How is free will possible if everything happens for a reason?

So god works through people right? And people have free will right? So did god make everyone with a vision in mind of the choices they were going to make in life?

I have a choice tomorrow.

I can:
A.) Rob a bank
B.) Go to school.

Regardless of the two choices I can only live one reality. Now even though it's MY choice, how do I know it's really MY choice? How do I wasn't MEANT to make a set of choices from the instant god created me?

So are how can I be sure that predestination isn't real. (NOT SAYING PREDESTINATION AND THE BIBLE ARE AFFILIATED.)

I just find this interesting.

Even if you don't believe in god, this is still a good thing to consider.

Despite what we think, are we bound to a certain fate regardless of what we think?

And by saying that god didn't make us knowing what we'd do with our free will, then does that mean god can't see the future? Then how would he know what people he would work through to make this world a better place? (Atheists Ignore this paragraph.)