Thelema

Any Thelemites here? I just was wondering some basics things on the cosmology of Thelema. I know it's about finding your true will, but I was curious if there was a cosmology of any sort.

Like have we always existed, or were born and then born again in human bodies, or just born in human bodies? If so what is our guardian angel? Is it our subconcious? Is it immortal? Is it our higher self, so we are immortal? If we are immortal then how did we get to the human experience, if not then how did we get here(as in what did the 3 gods have to do with anything). Like does Thelema deal with anything beyond the human experience?

Also does it believe reality is completely subjective? Like Scientology believes in subjective reality and not just as perspective and Ron L. Hubbard was a member of the O.T.O.. Also cloud atlas and beliefs creating reality and the Wachowskis are apparently O.T.O.. So does our subconscious create reality? From what I understand from gnosticism and alchemy, they are all about becoming one with your subconscious mind and such so is Thelema about becoming one with your guardian angel?

Also members of the O.T.O. create elaborate cosmologies of their own, I was just curious as to why?