In a purely material brain, the desires themselves will comprise material reactions generated by past events, and if these desires are what control your choices, then the "choice" is simply an inevitable reaction to events. But is a conscious desire or a want entirely definable in material terms? In our conscious awareness, we are aware of desires and reasons and possible consequences before we consciously invoke a choice. I am quite certain that in these circumstances it is not the desires themselves which invoke a choice - it is invoked by whatever comprises my conscious awareness, and given the identical circumstances I am free to invoke whatever I consciously choose. I make the choice - it is not made for me by past events. This is the reality perceived by every conscious human being. You can try to explain away this reality using our limited knowledge, but you can't remove it.
There have to be reasons why we make our decisions and these are the antecedents of our choices. If there are no reasons, the result has to be random. That is the only alternative. Whether decisions are arrived at consciously or unconsciously has no bearing on this logic. Even your soul idea cannot escape this logic,(unless you make it supernatural and beyond understanding, which is to say, you can say nothing about it at all, and your whole idea becomes simply a matter of your faith.) Your idea of freedom seems to fly in the face of this whereas my idea of freedom lies within this logic.
Julian Baggini put it, I think, rather well, in his book ''Freedom Regained, The Possibility of Free Will', when he said:
Thinking about the freedom of the artist should change how we see free will for everyone. First of all, artists help us to understand that to be free is for your choices to flow from you, whether they are entirely conscious or not. Second, to be free is to be able to generate highly personal outputs from the inputs of nature, nurture and society, not to be free from their influences, able to create from nothing. Free choices are ones where the individual contributes something indispensible to the choice, even if the ability to make that contribution is something that is in one sense simply the result of nature and all past experience - for what else could it be the result of? Third, to be free is to make choices in the knowledge that there are other options and without being forced or coerced one way or another. This can be the case even if, from a certain point of view, the choice you actually make is the only one you would ever have made in that situation.
Keep making the same assertions if you like, but personally I find them rather tedious because they don't enlighten, they simply repeat what has been a long running saga, where you signally failed to deal with the arguments and explanations that were produced.(If you want examples, I can easily provide some)
I was much more interested in trying to glean your evidence for the human soul idea at the beginning of this conversation until I sadly discovered that you really had nothing to offer, so, unless you come up with something fresh and interesting, I see no point in continuing this particular conversation.