Any writer that intends to stay in the business for any length of time needs a tough skin. There is so much rejection and hard work involved in being successful, you really have to have a never give in attitude. You have to believe in yourself, even when everyone around you may doubt and question. That is what Dory has in spades. There is no obstacle that cannot be overcome if you just keep working at it...just keep swimming.
For each setback and rejection I receive I remind myself of Dory's words.
"Just keep swimming. Just keep swimming. What do we do? we swim, swim."
I firmly believe if you do, you'll eventually make it to the other side of the waterway and reach those goals you have set for yourself. No matter how big they may be.