Wildlife Conservation in Africa

I am a 66 almost 67 year old retired woman who has decided she needs to do something useful with her life. I have always loved animals and the continent of Africa. I have planned a trip to Zimbabwe to do wildlife conservation and to help out at a local school. I don't like asking people for money (never have) but after planning my trip I see that need to replace some cabinets in my kitchen. The damage was done from Hurricanes Charley and Frances and Wilma (we lost most of roof from Charley) and when Frances and Wilma hit we had a river in our kitchen) in 2003 and the cabinets are finally disintegrating.