"That is why, for Christ’s sake, I delight in weaknesses, in insults, in hardships, in persecutions, in difficulties. For when I am weak, then I am strong." (2 Corinthians 12:10 TNIV)
Don't regard your feelings too much. Have vision for what you would like to accomplish (write it out) and lay it before God continually. As you do that, thank Him that it is all impossible without him. Thank Him that only He can do it all through you. Thank Him that therefore nothing is impossible. Then ask Him about each thing you've been asked to do: "Do you want me to do this Master?" If at all you sense a "yes" then you can do it, no matter how "impossible". It is His problem!
"Lord , you establish peace for us;
all that we have accomplished you have done for us." (Isaiah 26:12 TNIV)