Freedom is in Christ Jesus Our Master
Free will is not an internal state but an objective one. If we feel trapped into an addiction, that does not mean we cannot stop - we can choose not to do it, even though that choice causes anguish and pain, so free will - which is soulish - is objective and not internal, like the subjective experience of happiness or the sensation of pain, which is physical and not soulish.
Belief is spiritual, and it drives our soulish choices. Our environment, past actions or other forms of causation do not drive our souls, but our beliefs directly drive our thoughts, emotions, willpower, non-twitch reactions - twitch reactions are physical in the present but a mix of soulish and physical when they are being trained - and our choices are also driven by our beliefs.
Believing truth sets us free. Master Jesus the Messiah is the Truth.