Hai Laura, welcome to the forum.
The red line through your testimonial is that you believe despite the fact that you don't know everything. Many of us don't believe despite they don't know everything.
E.g. since you don't know how the universe came to be, there's no reason not to believe in God (according to you), but according to most atheists, the fact that we don't know how the universe came to be is not an indication to believe in God either.
Theists are quick to say 'Godidit'. Out of body and near death experiences are a good example. When we first became aware of these phenomena, there was no natural explanation for it and theists therefore assumed it was proof for the existence of God (because we could not explain it in a natural way). More sceptical people just said: "we don't have a natural explanation, yet, maybe we will never get a natural explanation, but that is not proof of the supernatural".
Religion however does make claims which are verifiable. It is easy to prove that the Koran or Bible cannot be 100% true in the literal sense and I'm going to assume you're intelligent enough to understand this, so I won't elaborate on this. However, it is not always clear which parts of the Bible should be interpreted literally and which parts have a figurative meaning and not all Christians will agree on it. Should the Genesis creation narrative be interpreted literally, and if yes which parts and which parts not (there are two different, contradicting Genesis narratives)?. If you're going to say that it should be taken literally, it is rather easy to demonstrate that you're wrong. It has been proven that the earth is around 4.2 billion years old and that the universe is around 13.7 billions years old (which still does not exclude the existence of God or God as a creator, but it refutes the Bible's Genesis narrative).
Some things are incorrect though. For example, Exodus tells us that the Israelites lived in the desert for 40 years after leaving Egypt, but there are no archeological traces of a large settlement of Jewish serfs, there are no traces of a longtime inhabitation of the desert between Egypt and Palestina and there are no traces of a Jewish conquest of Canaan. So it did not happen.
Some claims made by the Bible or Christians are also shown to be wrong. Research has shown that there's no statistically significant benefit to prayer. God may answer your prayers or he may not, but if he decides to answer your prayer, he does it in the same rate as helping people who did not pray. So if God's divine plan is already determined, what point is there in praying to God to help you?
From experience we know that the more society advances, the less gods remain. In the past we had gods for thunder (Thor, Zeus), love (Venus/Aphrodite, Amor/Cupid/Eros). Now that we have explained these phenomena in a naturalistic way, there's no need for such gods anymore. It demonstrates us that people believe in God/gods because they don't know everything, not despite they don't know everything.
What questions does the Christian God answer? Might we be able to answer these questions in a natural way in the future? If not, is it correct to assume God exists because we don't know the answer? To the last question, I'd say no.