Never give up. It's like breathing - once you quit, your flame dies letting total darkness extinguish every last gasp of hope. You can't do that. You must continue taking in even the shallowest of breaths, continue putting forth even the smallest of efforts to sustain your dreams. Don't ever, ever, ever give up.
Do you often feel like parched ground, unable to produce anything worthwhile? I do. When I am in need of refreshment, it isn't easy to think of the needs of others. But I have found that if, instead of praying for my own comfort and satisfaction, I ask the Lord to enable me to give to others, an amazing thing often happens - I find my own needs wonderfully met. Refreshment comes in ways I would never have thought of, both for others, and then, incidentally, for myself.