I asked the same questions as you until I was lucky enough to have the one and only God of creation reach into my life in a way I could no longer deny. I cuss, I ****, and I fight. I love and I hate... truthfully I am a terrible representative of the faith I claim to have, but God does not call the qualified, he qualifies the called. Until God shakes your foundation you will never change your mind, but when you can't do it on your own anymore, if you open your heart to him, he will change it for you.
Faith struggles to survive in our Earthly educated minds, but I think that is by design. I think there are billions of planets, and so many things that are unexplained, to teach us the importance of faith and to test our beliefs.
Also, most major religions like being Mormon, Buddhist, and Islamic, can all be traced back to the human being that created them, so yes they are 100% human created and even documented as though