Dude, if you already double mind, you gonna come back to god sonner than you think, mark my words.
If you do become atheist, you;ll be a classic "
Atheist in foxhole".
Atheists in the Foxholes:
Atheists in foxholes - Wikipedia, the free encyclopedia
Also contrary to what other ppl suggest; I don't think creater and higher powers are same thing. I was a "atheist" until some experiences blew me away.
Even now I don't really believe in any particular religion, I do believe in higher dimensions/power and that we are in this life to learn some specific lessons.
It could even be said that universe gave you this specific life for its own "broader purpose" and we do seem to have very limited free will. In that case universe can be attributed as a God.