It sounds like it will be an amazing adventure for you. Hopefully it will be as safe as you are expecting it to be. In a place like africa, anything can happen. I've never understood why people decide to offer aid overseas, when their own country has so many problems and needs so much help itself...as the U.S does, but I guess they feel like they are REALLY helping if they are dealing with third world countries. I'm sure you could do just as much, if not more, good work in the U.S, but since you've decided to go I will wish you the best of fortune, safety and a pleasant, life affirming experience.