I wish I could help, but I just stopped by to say that I'm jealous you are going to Africa before me. I don't have a trip planned yet, but it's at the top of my travel list. What countries are you going to?
If your not a member of a gym I would suggest starting there and going 3 - 5 times a week dependent on your schedule, the gym will provide classes for you to attend, which will also help you to get into shape. In addition to exercise a change or look at what your eating should be done. My wife was the same, when she was going on a safari holidays to South Africa, she wanted to get into shape and ever since the holiday she has carried on her healthy lifestyle.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.