How can you be the change that you want to see in the world?

For me, it's focusing less and less on myself and more and more on how I can be of service to others. Of course, it's easy to say (or write) but not so easy to do.
Another way for me to "be the change" is to change the only thing that I really can change: Me. For the longest time my attitude was "if only so and so would do I wanted them to do, then things would be great" or "I'll be happy when I get this job/relationship/external thing" or "if only..if only...if only". And when things went (very) poorly in my life, I had someone to blame for my misfortune. Now I have to take responsibility for my life, and if things do happen in my life that I don't like (which has been the case lately), then I am the one who is responsible for how I react to whatever is going on (again, easy to say...). And if I try to find a solution (as opposed to focus on the problem) and keep going about my daily business (even what the numbers seem to be down) then I tend to come out better than when I would just "give up" and take the easy way out.
Another factor in my life is the one factor that I often don't even understand: God. I have no idea whatsoever how God works or who God is half the time. I do know that he is not the angry, vindictive, wrathful, psychopathic God that I used to believe in, but is in fact quite the opposite. And he isn't me, and he created the universe (somehow) and is now My Friend (and works in very subtle ways that I can't fully describe).
And trying to do God's Will has been far more helpful to me then trying to live my life by my own (very selfish) rules.
And since I am a Work-In-Progress, if you ask me this question tomorrow you might just get a different answer.