To what extent do we as humans have free will and to what extent has God predestined our lives?
Freedom of the Will means that we are free to choose according to our desires and natures, so I may desire to fly by my own means, but my nature limits that choice.
I also choose according to my desires. I may have my desires changed. I may have no desire to give my money to a stranger, but should that stranger have a gun, I may suddenly develop an overwhelming desire to give my money away.
There are all manner of limits to our "freedom." You just need to be explicit in what you mean.
We choose God because He first chose us and made us new creatures. In the act of re-creation we begin the process of sanctification and are conformed to the image of Jesus Christ.