Have you ever met somebody who has a child-like faith? A person who just seems to believe in God without questioning?
I remember a friend from grade 1 who firmly believed that raisins were made from dead flies because her brother told her so. She trusted her brother without questioning him at all.
Our faith in God should be of a similar kind. We should have a child-like faith that God exists, that God only wants the best for us and that God is in control of everything.
Naturally we should question everything that teachers of God's word say, and we should be weary of false teachers and prophets, but we need to be sure in God's word as we read it. Trust it and have faith in him.
Jesus himself said that if we do not receive the kingdom of God like a little child, full of child-like belief and faith, we shall not enter it.
Trust God unconditionally. Love God unconditionally. And receive him like a little child.