There is only one choice. From that choice alone the illusion of freewill is born out.

Consider a simple thing like visiting an ice cream vendor and picking a flavour of ice cream. Are you actually making a free choice? Or are you in reality merely reacting in accordance to the sum of all your experiences to date? E.g. did you pick vanilla because that was what your mother always gave you? Or rum raisin because you haven't tried it yet, and your father rigorously impressed upon you the importance of trying new things? Or are you standing there lost in a daydream about the philosophical implications of the ability to be able to choose or not because of some comment you read on reddit that one time? Or are you simply unfortunate to be born in world that has mundane trivialities like choices of ice cream when you could have been lost in the endless bliss of pure love of God?

The thing about philosophy is, it doesn't tend to get you anywhere. You can speculate endlessly about anything, often with very good rational arguments that set a coherent and complete system of thought. But if it isn't grounded in reality it remains only speculation and thought. Real knowledge is realized from experience.