How does an aid worker find peace?

Since I missed my deadline for the free medicine from a non-profit here, I requested local Goma prices for medicine I might purchase there. Since I received that list, I'm comparing it to prices I can get from another "discount" source and/or off-the-shelf Wal-mart type medicines. Lesson learned this week is: I need to really let go of MY IDEA of what I want to give. This is a greater task than most would believe. Because it takes highly compulsive dedication to stick with all this to begin with. It's like putting the brakes on a NASCAR when you really wanted to reach the finish line. The lesson is to be accepting of what I can't do compared to what I want to do. This feels like a very good discipline to develop before getting to Africa and seeing the reality and extent of the level of need. It will always be bigger and beyond my desire to fulfill it. So, how does an aid worker find peace? I'll have to ask the ones I meet.