I believe in God because I know He is real and I can feel His presence. The proofs for God, are all around us. We all are not just a body, but we are a person who consists of 3 parts: Body, soul, and spirit. We Christian can "Feel the presence of God" which is part of that discernment of the spirit. If there is spirit in us then there must be the spiritual world, which is eternity because spirit is the energy that cannot be destroyed, it will exist forever and ever. Body is only a shell for us to live on this earth, once the spirit left the body, the body will just rot away to dust again, for it was made from dust, thus come back also to dust.
The bible said spirit was the breath of God, where we were all created in His image, that we are all bestowed with knowledge and creativity to create things on earth. This is another proof how wonderfully God has created us human being.
"Believing" is an act of human will - which may or may not be accurate. Given the lack of evidence - not personal testimonies - but hard evidence that can be validated by any number of sources - the proposition of a deity or deities is doubtful. You believe in supernatural entities because you were raised and indoctrinated into your belief. The religious are notorious for using "confirmation bias" where they cherry pick phenomena to support their beliefs while dismissing any contrary evidence. Belief and worship of something we have no evidence for is an exercise in self-deception.
No, I wish I could, I would love to think that there is someone looking out for me all the time but it just doesn't work in my head, but I pray some times, during school( catholic school so...) it can't hurt.