Humans have a spiritual side. This is what you miss the most I think. I would invest that in goodness and honour even if you don't believe in God, try to be righteous, good and honorable. Strive for justice instead of trying to learn tricks to use the spiritual world to your worldly advantage.
I would also reflect about things that can point towards God's existence like intrinsic value.
I would also reflect about things that can point towards God's existence like intrinsic value.