Congrats on the six days sober!
I also second what Lexie said about AA. When I first came to SR, I thought the same thing you did about it--that AA is a Christian recovery program. The more AA literature I read, though, the less I believe this.
I am so glad I have been able to meet folks here at SR who have given me a new view on the program. Anyway, what you choose is up to you. However, if the only thing keeping you out of AA is Christianity (and you really believe you could benefit from AA) . . . . well, I'd hate to see you stay away because of that.