A former agnostic, with doubts?

[RobbyPants]

Well, according to all recent theorys/facts, the universe we live in is finite and was created. So it's obvious that "this" precise universe is not eternal per se. So if this universe isn't eternal, something beyond it must be.
And i'm not certainly arguing for the existence of gods as there's no definition of a god, i'm arguing for the existence of something "supreme" to the universe, that is eternal, creating and the primary cause of everything else, which can be a posteriori called as God.
If we assume the existence of an eternal supreme being to the universe can be true, then God could be possible, not the other way around.

Perhaps the part of the universe we can observe is just the tip of the iceberg.

I'm not trying to promote pantheism or push this idea as fact, but I'm trying to say two things:
1) It's fine to not have an answer to the question. Not having an answer isn't a good reason to push for an otherwise unsupported hypothesis.
2) As easy as it is to shoehorn something that could be called "god" into the equation, it's just as easy to fabricate other unsupported causes.

But that's exactly my point, isn't it incredibly weird that a "randomly" generated universe would have this scale of predictability and precision, to the point that the universe itself functions with strict casual laws and effects, and these same laws organize themselves into all the different dependencies of the universe and on life forms?
Isn't it weird that we have a well defined causual system and timearrow, when presumably our universe could and should be way more chaotic?

No, not really. You're putting the cart before the horse. Yes, it could have been an infinite number of other things, but it isn't. The fact that it is this way isn't indicative of any intelligence.

Yes, humans can create complex things and systems than have an intelligent cause. This does not mean that every complex thing or system has an intelligent cause. That's just bad induction.