You should never give up hope. For all you know you may just be reaching your goal anytime. Read these don't give quotes and get inspired everyday.

Don't give up. There are too many nay-sayers out there who will try to discourage you. Don't listen to them. The only one who can make you give up is yourself.
Sidney Sheldon

Ever tried. Ever failed. No matter. Try Again. Fail again. Fail better.
Samuel Beckett

Achievement seems to be connected with action. Successful men and women keep moving. They make mistakes, but they don't quit.
Conrad Hilton

Fall seven times, stand up eight.
Japanese Proverb

Don't be afraid to give your best to what seemingly are small jobs. Every time you conquer one it makes you that much stronger. If you do the little jobs well, the big ones will tend to take care of themselves.
Dale Carnegie

What lies behind us and what lies ahead of us are tiny matters to what lies within us.
Ralph Waldo Emerson