Does God Really Exists?

This is a question that have been commonly asks by some Christians and probably non-Christians. One time in Bible class, at my school, a friend of mine asks "Does God really exists?" That made me stop and think, 'Does He really exists?'

I mean you can't see God or touch God so does He really exists?

To be honest, this question has been troubling me for years even after I got saved. For people who don't know what I mean by I got saved, it is repenting for my sins and asking God to forgive me and receiving Jesus Christ in my heart. Yes, as you can see, I am a Christian. Anyways, back to the question, what I'm about to explain is what I think.

Let's put it this way, how does the world came to be? Some people say it came from the big bang while others say that it was made by God. In the Bible, it says, 'In the beginning God created the heaven and the earth.' Now think about it, the person that wrote the book of Genesis, how does he know this kind of stuff? Did he make it up or lie about it? If he did, than does that mean that all the history and things that had been recorded in the Bible are made up? I don't think so. Someone must have told these people what to write and I believed God told them. 

Another proof that God really exists is us. Who made us? Who made humans and animals? We can't just suddenly appeared so there has to be someone that made us, right? Everything is made by someone or something. Like, the computer that you're using right now, who made it? It has to be someone, right? So, then, who made us? It says in the Bible, God created Adam and Eve and he also created the animals. Adam and Eve are humans. They made many, many kids and those kids made many, many kids. Which explains why there were so many people in the Bible. I believed that God is the one that made us.

In conclusion, I believed that God really does exists. I hope this answers your question. If not, just tell me, and I'll explain it in a simpler way.