Do you believe in free will?

[oxymoron]

So if we can show that the conscious can input back to the subconscious to change our state, then this is a demonstration of free will.

Well it's a description of a mechanism. I don't think there's anything "free" in there (in the sense that a theist would mean at any rate). We don't choose how our brains wire themselves, and we don't choose the external events in the world (they happen whether we like them or not), so there is no room for any sort of freedom in there.