Whether God exists is in an actual sense: irrelevant.
What matters is if there is something you believe in. It’s belief, faith that gives you “your own” something to follow, something that can pull you along.
Be it family, or that twinkle in the sky. Bottom line is that what actually occurs is applied behavioral science.
You can get billions of people to do constructive things for themselves with laws allowing this type of freedom. And a liberal economy that “your own me” does not destroy the species, or community life of homo sapiens sapiens via a constructive, durable belief system.
The finishing line–is in twelve years. Go active.