Self Pity

Feeling sorry for yourself, and your present condition,
is not only a waste of energy
but the worst habit you could possibly have.
- Dale Carnegie

Self-pity is our worst enemy
and if we yield to it,
we can never do anything wise in this world.
- Helen Keller

We have met the enemy and he is us.
- Walt Kelly (Pogo comic strip)

Improve what you can
and accept all the rest of life
just as it comes.
Know that fear is your worst enemy -
perhaps your only enemy.
- Jonathan Lockwood Huie

Further reading: How to Stay Positive

Is your glass of life half empty? Or half full?

How to Feel Better About Yourself

How to Cope with Loneliness