If we take Reality as being "God", then yes, your future is determined by God (thank you, B-series time).
Free will of the individual is non-existent (thank you, Nietzsche).
Everyone (or, rather, everything) is responsible for everything (this is "God").
In the end, this is just the other extreme from saying that nothing has meaning/purpose - everything has meaning and purpose, and everything is meaning and purpose. These two perspectives come to the same point, which we seem to be calling Nihilism.