According to all the evidence, "conscious control" is "physically determined events in our material brains".
In making this statement, you show that you do not understand the concept of control.
For control to exist, there must be a definable source which has the capability of invoking control.
In an entirely physically determined scenario there can be no definable source of control, since everything is a direct, unavoidable consequence to past events. If you believe this, then you must concede that you have no personal control over anything you write, because all your thoughts, words and actions will be directed by physically defined reactions - and you can't control the laws of physics.
And you have the problem of defining the concept of personal belief in the physically defined scenario. If you have no personal control over what you believe, how can it be labelled as your belief?