How does everything exist?

What is this i don't even. How do we exist? how did the "BIG BANG" start? how did anything exist? how is anything possible? where did time come from? if we did not exist, what would be happening? what is the meaning of life? How did life start in space? How do Gods get created? are they the basic essence of infinity? forever? basically a paradox of living? are we even real? are we just a thought in someone else's mind? I want answers from all perspectives. Religious people and non-religious people.