Are you involved in some sort of service activity, a volunteer group of some kind, something meant to help others? I keep running into people who seem to be doing these kinds of activities more for reasons of personal fulfillment (or even just personal convenience) than for the benefit of others. Here's Fleet Maul, founder of the Prison Dharma Network, talking about this issue. Scrub forward to 5:29 for the relevant comment.
Ask yourself honestly, why do you do your particular service? Are you really trying to help others who are suffering? Or is there some self-aggrandizing element that you have not addressed? Too many of us do volunteer work out of a misplaced sense of "I." The irony is that service that arises from a misplaced sense of self ultimately causes suffering. It is only when that sense of self disappears that real transformation begins.