The exact same things could be said for you and what you believe. The only part that doesn't work for what you believe, is that things in the universe don't happen without causes. So, what is the cause of the universe?
Before the universe existed, whatever there was, caused it. Since cause and effect are universe qualities, we don't have a clue about C&E affecting anything outside the universe, before the universe existed.
The order and organization in the universe shows that whatever caused the universe, had the ability to plan and design. Of course, because such planning and designing ability isn't like planning and designing ability within the universe, we don't know the depths of what that planning was like, and what the Planner was/is like... at least not without being told.
So we see that anyone who thinks that God doesn't exist is tossing out the evidence, and the scientific evidence.
We don't know. There was no time so how can you have a cause?
You're unusually slow today? Outside the universe, it was something made up of cause without internal effect. It caused the universe, as an experiment, to see what effect was like.
Of course, you can use many other explanations to determine if it even wanted a "why?".