If something's true, like an all-powerful god exists and wants me to live well by following its' rules that'd be great.
You are absolutely missing the idea of GOD by envisioning a gray bearded old man sitting in the clouds who
wants you to follow this or that. It is you who makes decisions to follow them or not. It is your
responsibility to make that decision. If you do not follow them and hurt others' legal interests in any way, you will face the consequences also known in some belief systems as KARMA. Basic behavioral rules are laid down for the benefit of all. Those rules or laws are designed to have people to live in harmony with each other. Similar laws were laid down separately and independently from the Mosaic Law by Hammurabi.
Compared to some of the "good" people of various religions I'm the ultimate expression of what they're going on about about being good AND religious. But I'm good without religion. I'm good simply because good IS good. Not because of some book. Or risk-reward analysis.
I'm good because (while I hate admitting this one) because of something Oprah said.

She said giving to others gives to us most of all, or to that effect. And she's right. So I live my life to give joy to others however I can. Not to be rewarded after I die as my Grandmother did, not because I'm afraid of being judge poorly by God as some do, but because being good gives to ME right now.