Free Will vs. Predestination?

I’m not sure if whether I am oversimplifying the matter, but I don’t feel it is that conflicting. Much like the religion vs. science debate, I feel that free will and predestination somewhat go hand-in-hand. So, if humans are bestowed with free will from God, they have the ability to choose. Predestination then just means that God knows what they will choose. God isn’t choosing for them, but just knows what will happen. Or, if we read a book, we don’t know what will happen next, what the characters will choose, or what will happen at the end. We wait for the characters to choose their actions, right? And then we are able to see what happens next. God, being All-Powerful, has already read the book and knows what will happen. Does that make sense? I know the questions of WHY? or HOW? come up, but, to me, it’s not vital to how I live. I just feel that there is no need to know everything that God has planned, nor is it even comprehensible by us mere humans. Overall, yes, there are unanswered questions. But, maybe, they are meant to be answered.