Just like it's easy to fall into the abyss of focusing on what we've done wrong, it's easy to get lost wallowing in what we don't like about our lives. To counter that, ask yourself, "What do I love about my life?"
Give yourself a pool of positive aspects about your life to focus on, both on the work front and the personal front. They can be big and deep (e.g., I love the fact that I get so much love and support from my family and friends), or not-so-deep (e.g., I love the fact that every Friday I have a chance to drum with a bunch of people who love drumming).
You may want to expand this into a long-term habit with a gratitude journal.
Brought to you by Curt Rosengren, Passion Catalyst TM