Help me with my doubt and unbelief

I wondered if my faith is strong enough.  I even wondered if I prayed the right words.  Either way, doubt is frustrating.  I guess I am a doubting Thomas.  I have little faith as of yet.  I even asked God to help me with my unbelief.  It is frustrating as I mentioned earlier.  I am not in a good way, not like I should be.  I am alone in this and I don't know who else or where else to turn.  This situation in my opinion requires strong faith, but with even a little faith, one can remove mountains.  I am not sure if my faith could move a grain of sand or a pebble much less a mountain.  Jesus, help me with my unbelief.  I need Your help.