I cringe as I write that word. It's true of me: I'm ungrateful.
This came crashing into my reality only recently when I read this quote:
"What if you woke up today with only the things you thanked God for yesterday?"
My response was: I would have nothing.
That got my attention. Finding things--searching outside myself--to focus on that I am truly grateful for really pours water on the fire of anger and bitterness.
I struggle most days with choosing joy and contentment over selfishness and circumstance. But I have learned that a thankful heart is rarely self-centered and a grateful attitude rarely contains anger. So I focus on being thankful.