You can believe in God, you can believe in the Theory of Evolution, you can believe in the Big Bang Theory, that is your right. However, the only thing that can be proven using real science is that God exists; there is no real science to even suggest that the Theory of Evolution or the Big Bang Theory are correct. Real science is using all available relevant facts and determining if there is more than one possible explanation for the existence of each of those relevant facts. When you find facts that cannot have more than one explanation for their existence, then if you discover the only possible explanation, it is the truth. Sometimes there are many facts which have to be analyzed collectively before the single explanation for their collective existence can be discovered. Proving that God exists is done by using real science, which is looking for facts that could only exist if God exists; if you go to the effort of doing as I suggest you will discover that the Theory of Evolution has no science behind it, and the Big Bang Theory has no science behind it. Based on real science the only explanation for existence is that there was a creator, which Jewish people, Christians and Muslims have always called God, as I am not familiar with other religions I do not know what they call the creator.
I have included this page because I find it irritating that people call the Theory of Evolution and the Big Bang Theory science, as they are nothing but speculations.
This is NOT advice to have faith in a religious leader. I do not know of any religious leader whom I believe has any knowledge of God. Scientific analysis will allow you to prove that a creator exists, and any bible that God has not disavowed should have information about the potential for you to have a connection with God.
Scientific analysis does NOT include quoting from bibles and saying that God exists because the bible says so, real scientific analysis is as explained above.