So, without further ado (and with much blatant and shameless self-promotion), let me present an excerpt from my book I, MIGRANT, which answers all your questions. 
Kwa hiyo, bila kuchelewesha muda (na kelele na kujisifu kusikohitajika), naomba nikuoneshe sehemu ndogo niliyoitoa kwenye kitabu changu I, MIGRANT ambacho kinajibu maswali yako yote.