This is an existential dilemma that has always bugged me, but I found a work through that's satisfactory for now:

there seems to be a distinction between Free Will (the ability to act in the moment, I don't believe it exists) and Self Awareness (the ability to consider your-self & your actions in the past or future, which apparently does exist for me).

To me, it seems we have no choice about what to do in the moment. But the moment afterward, we begin to reflect on our experience, replay those sensory signals & imagine our different responses or outcomes, and rewire our brain for the next opportunity to automatically respond in a "free-will" scenario.