Of course He makes the rules. This is His creation. That’s like saying the NFL Owners don’t make the rules, the players do. Silly.
You never pointed to where it says you get sent to hell for not worshipping him the right way.
You keep acting as if there is a set of standards greater than God that He must adhere to. Of course God is only obligated to be Himself. You act as if it is somehow unfair for a parent to tell their kids they can’t watch R rated movies but then that parent watches them. God sets up rules for His creatures to follow; He is by no means obligated to follow these rules. He is fair, loving, and just because they are part of His nature, so everything He does is fair, loving, and just regardless of what you think.
It is fair for both of us to be punished for Adam’s fall because Adam was mankind’s representative. When a country’s representatives declare war on another country, everyone in that country is now at war. When Adam rebelled we all became rebels. You also act as if you have never sinned in your life, something I find highly doubtful. So the whole “it was Adam not me” argument is fairly moot.
Where did I say heaven?