The phrase "blind faith" is redundant. Faith is believing in something despite the fact that you can't see it or touch it. In order to be faith, it must be blind.

People too often confuse faith and religion. Religion is organized and man-made. Faith comes from your mind, heart and soul. They are completely different things.

X, it's normal to have doubts. If you've read the bible, even Jesus had doubts. Remember Gethsemane? Remember when He asked His Father to take the cup away??