Fly to Jo'burg and do a South African licence validation. Try not to get car-jacked, mugged, beaten, robbed, or other-wise assaulted in the process. Expect to spend about a month there, with delays included in that.
Then, as noted above, try the Southern African countries like Botwana or Namibia, who frequently hire low low time pilots to fly piston aircraft and even 2 crew Caravans in the bush. Be prepared to seriously pound the pavement in doing so, following all leads. Network like crazy, jobs sometimes materialize overnight when somebody leaves and be prepared to pursue them as best you can.
Its not going to be easy, but if you are truly as "desperate" to get abroad as you say you are, you'll do it.