I don't think free will is an illusion. Rather, I think it's complete nonsense. If we are completely deterministic, then the only way we can operate is deterministic.

Now, if you're talking about agency. That's a bit different.

We believing in awareness

I don't think your answers suffice. Clearly, there's an operational definition of awareness as defined by outside observers. We can test if a person is aware or distinguish colors and even determine if ability to perceive colors remain the same across test subjects but we have no idea on how to access the subjective experience.

Really, I don't think your explanation explains anything.