Your right, the dream is different from reality. Its not easy to sell if you can these accounts, as there is so much protectiont hat goes into the registration and mainatiance that to just throw accounts aropund different countries and computers, is always going to raise a red flag, and you can't afford to give people a bad business and have loads of people running after you for refunds, cause you got in too deep.
Look for legimate ways to make money, and with payment gatewaysment that are valid in your country. If you can't find any online, i suggest, you go ask all the local shopkeepers and industrial warehouse importers and exportersm how they work digitially internallatacally, what cards, and banks they us etc.,
Then publish a book called "Making it in Nigeria Digitally" And write the interviews up,a nd your own notes and research about what it takes, and what you need to do, and in turn how and what you can be exposed to digitally.
TBH people from your country all work for that nigerian prince, so it can't easy to do anything digitally or new, but there are a ton of ways if you wait, its the payment gateways that are few. Take time to learn, to earn legitimately, as long as you can register in most cases, an america, or european country, and postal address.
Good luck.