I really don’t know why you want a job in Nigeria. There is plenty of work in the U.S. At least, if you cannot find a job in IT, you can always work as a personal driver to some high-ranking CEO. It is a very prestigious job that pays well. If you have a business class car you can be using it for a job. In this case I recommend you to find a good insurance company for full coverage. Here
https://www.americaninsurance.com/auto-insurance you can check the rates of some.