The flaws I found in the Big Bang Theory

So, the Big Bang started from a spark right? What caused the spark to appear? How could a spark be able to create intelligent life forms who are even able to think of the Big Bang Theory? How can a spark make multiple religions? How can a spark make such a complex universe? It says on wikipedia that the spark just slowly made atoms and the universe, how can a spark do that? If you scientists want me to believe this rubbish of a theory then prove these flaws wrong. In the mean time I wont believe this theory.