By the way, Africa is a continent containing about 53 countries, all of them distinctly different. The geography encomapses a huge range, from vast deserts through large savannah plains to tropical rainforests, etc. Societies range from isolated primitive villages through dense high-tech cities. Cultures, religions, wealth, political systems, social customs, languages - everything covers a wide range from one region to another. It defies stereotyping as one "Africa".
Wherever you consider going, do some research first. Aside from the geography, you'll want to know about social customs, local politics, civil unrest, money, how widely English is used, whether corruption of officials is common, lots of things like that. Go semi-informed wihth an open mind to learn new stuff, and enjoy!