I cannot believe as true that God expects anyone to master theology, to master any religious custom, to become an expert about metaphysics, philosophy, science, mathematics, or anything else in order to be at peace with Him (I'm being conventional not dogmatic about "Him."). I cannot believe that God expects anyone to have no doubts about Him. I can believe that the simplest faith (consisting of doubts and all) of the simplest person in the simplest of circumstances is more than sufficient to warrant believing that one is at peace with God.
I can believe that such faith will not remove anyone from having to deal with this earth in this universe and with circumstances in which and through which he/ she must live. Such faith will not guarantee that one will easily find answers to every (or any) problem. Such faith will not guarantee that many problems will not be left unsolved. Such faith is NOT a quick-fix for anything. It's simply the avenue to peace with God in spite of any doubts and questions that one might have about God or anything relevant to God.
I can believe that such faith is not an excuse to abandon ones senses and / or to avoid reason. Rather, it is an invitation to make the best use of ones senses, to be as scrupulous with reason as one can, and simply take a chance and believe that God is.