Faith is not the absence of doubt. Doubt isn't always the adversary of faith.
Faith isn't a bottle of prescription-like answers. It is the pursuit of the Presence of a Person.
Faith is seeking the Shepherd (even when it's dark and dry). It's walking to Him on water in the storm, and it takes trust.
It's looking directly, desperately into Jesus' eyes of love when doubt tries to blind.
Faith is clinging to and claiming promises. "Blessed are the pure in heart; they shall see God." "He rewards those who seek Him."
Solutions aren't the antidote to doubt. Jesus is.