I an exercising my freedom to choose.
I am not a pre programmed robot
Your usual tactic, there, just side step engaging the actual question and throw in a little prejudicial language for good measure.
That we act on what we want is entirely consistent with a deterministic account of mind. To demonstrate free will, you need to demonstrate freedom from that. Show, for example, that if you could rewind time, how you could have chosen differently for no determining reason without the result being random by definition. See, as Stranger keeps pointing out, your problem is nothing to do with 'physical' or 'material', it is to do with logic. The claim of free will is inherently self-contradictory.