Sorry that the post is so long. Essentially, I've put forward my thoughts on why religion, specifically Islam, has a supernatural origin to it.
I'm looking for you to debate & poke holes in what I've written to show any faults in my thinking. I want to find out what the weaknesses in my argument are.
In summary, I want you to tell me why I'm wrong.
Pick a religion that you don't believe in and start with that...
Search for evidence of the supernatural outside of Allah and the Quran, that way your personal bias won't distract you.
What you'll find is that you can justify the deity and faith of almost anything when you focus solely on what that particular religion has to say.
That alone should tell you everything you need to know about faith, as long as you aren't scared of being honest with yourself.
You've been doing a lot of reading about Allah from Muslim sources, I assume?
Focus that same amount of energy into reading about pagan gods from pagan sources, for example.
If what you currently believe about your god to be true is actually true, then you have nothing to fear, right?
If what you currently believe turns out to be a bunch of superstitious mythology, then there's no harm in leaving it, since you shouldn't waste your time believing in made-up things anyway, right?
It's very easy to convince ourselves to believe in things that we want to believe it...
Real answers, however, come from not taking the easy way out.