How do I know God is real?

Romans 1:20 helps'" For his invisible{ qualities} are clearly seen from the world's creation onward, because they are percieved by the things made, even his eternal power and Godship." Look at creation to build appreciation for the Creator. For instance, the great variety of food reveal Jehovah God's love and generosity. The orderliness of the universe shows wisdom. The symbiotic relationships of various organisms shows justice.How would all these wonderful things come out of a huge accident,a big bang? Impossible!