I highly disagree yiostheoy.
From your first post, once you settle in your mind whether that there is or isn't a "god", there is no reason to combine yourself with another group of people...
In that case if you concluded that there was/is a God and you decided there was no need to proceed any further then you are a Deist judging from your own words.
Theism would then be useless to you. No need to find a specific organized religion.
I myself am Deist.
Ergo the God exists, the God created us, and the God has left us on our own.
No guardian angels, no prophets.
And if there is an evil genius as well, it is only a demigod and not a full God.
Why the God created the demigod is unknown other than the classic Zoroastrian view of the need for duality.
And the need for duality would presuppose a need for testing and proving.
And then testing and proving would provide a meaning for all the creations of God.
Q.E.D.