Listen, it doesn't take a genius to realize we're not perfectly free, just look on the news. On the other hand, only a rationalist believes is absolute determinism. There is a degree of balance and chaos in the universe. Your neurochemistry guides your thoughts so they manifest themselves from the subconscious. In this way, our minds are determined. However, with volition, I have the power to change my neurochemistry to produce the desired effects. Examples of this are consuming water and food, stimulant drugs like coffee, psychoactive drugs, and recreational drugs such as alcohol and marijuana. In this way, my choice to partake in this consumption changes the trajectory of the mind. Additionally, we are able to retrieve a good deal of information at will, this shows there is hope for a degree of free will.