- You don't exist
- Your cells coalesce into the beginnings of a living thing
- You acquire consciousness
- You have a life, and it is what you make of it
- Your consciousness ends
- Your cells decay
- You return to nonexistence
Although you technically never stop existing, because your deeds in life and, if you were an organ donor, your body parts can still exist without your consciousness. That is, as long as Earth and humans continue to exist.
Life has whatever meaning you can get. If a god gives your life meaning, find a god, though usually you are assigned one shortly after birth. Don't want a god? Find another way to give life meaning. End suffering, explore the world, try beer from every country in the world, climb every mountain, raise good children that can go off and do great things, whatever floats your boat.