IMO, believing or not believing in God is beside the point.
What is it that gives your life a positive forward direction? That's more the issue.
Instead of worrying about why we are here , a question we may never answer, try to give your life purpose. You can make this world a better place just by being nice.
It is the least I can do. And don't ever let it be said I didn't at least do the least I could do.
I would love to give the generations after us more cures, less poverty, a greener planet, a great standard of living and quality of life, a less corrupt government, less war, less bullies, less crime, affordable healthcare for all.
No God necessary to want to do the right thing. In fact many theists don't want to do the right thing.