I doubt Bible and God:

God planted the weird tree in which there were forbidden fruits, and he knew that the kids would eat them and sin for sure, since God is declared to know everything in the universe. And the desire of eating the fruits was also created by God.
Due to the omnipresent sin which had irritated God, he decided to flood the world except Noah’s family and what they kept. However, Noah’s offsprings continued to sin after the flooding and the world was once again filled with sin and sinners.
God dispatched his only son Jesus to preach, but Jesus failed to succeed and finally got crucified by the authority. Jesus’ death and blood have been advertised to clean the sin of the world. Unfortunately, sin never, ever has stopped.
God asserted that he would destroy the whole world at the end and bring the righteous to the perfect heaven. However, God has to give up the earth, which was created and loved by him.
Thru the whole story, I don’t think it’s a good design of God. It seems that God is out of control of everything going on.
In this case, how can I rely on him to help me out?