Who create God? Why there is always a confusion, misunderstanding and debates on the topic of God? Why do people want God? Isn't we are the one to make everything possible? We don't have to give our faith and hope to God. Isn't it ? Why God exists in all people mind?

You have the right to believe in whatever you believe in and you also possess the right not to believe in anything at all. Its your right and your conviction. For those that believes including myself have a sense of feelings that things dont just happen by default without the hand of God like getting unmerited favor, saving from unnecessary attacks, praying for a particular thing and even getting response which means someone is listening and answering that prayer and that person is no other than God.
There is the difference.... Atheists rely on proof... those who believe in religion speak about truth without proof.
You wanna play a game ? Give me a proof that after life there is nothing, that God did not created the Universe or that simply He does not exist. Atheists are the greatest plague on the World, as they are generally also leftists and decerebrated anti-racists.
Is there a valid proof of what you be after your death,god might have created the universe and he is one created the plague and all the diseases too

i am not certain what happens after death and there might be a higher power but i am sure religion is a plague without any doubt.
Love in its truest form, Christianity, is what fixes the plagues and problems of the earth. Whether it is abortion, mass murders, greed, etc., love would fix all of it. Without "religion", the earth would be an even bigger mess.
God did not create plagues. God did use plagues in the Old Testament to demonstrate to His people who God is, and to this day we still remember these historical times that are 100% true and real.
There is another power btw (in case you didn't know), the devil.