Calvinism; The Confusing and Incomprehensible

Calvinism. It just doesn't make sense to me, and maybe someone can explain it to me better. I am completely open to debate on this. Please feel free to leave a comment.

Where am I confused?
The fact that Calvinism states that we humans have no choice in what we do, that all we do is God's choice, just doesn't fit. Wouldn't that mean that God made evil?  That God made us sinners with no choice to sin or not to sin just to throw us into hell for sinning? If God made us this way, fine. We are His creatures and He can do what he wants with us, but that God doesn't seem to fit in with the God of love that sent His son to die for our sins in our place.
I happen to know for a fact that God made us with free will...at least over certain things. Leviticus 19:5 says so.

And if you offer a sacrifice of a peace offering to the Lord, you shall offer it of your own free will.

So, we do have freewill, if only over certain things. But then, what things do we have freewill over, and what things do we not?

I believe God knows everything. I believe God has control over the entire universe, but I also believe that God gave Man choice over his actions, and that our choices are our own. God is still in control of us. He can stop us and take over whenever He wants. But, I don't think He does. Yes, God knows all things. Does that have to mean that He makes everyones choice for them? No. God knows what choices we're going to make, but I don't think He makes them for us. Because if He did He would be making us sin, which just doesn't make sense.

Maybe I'm not getting what Calvinism is. And maybe, you can help me understand.

What do I believe?
I believe that faith is a choice each of us has to make. I believe it is not a choice that can be chosen for us. I believe in the doctrines of grace.