After South Africa, I have to say Nigeria was a SHOCK!
Look for other options. If a foreign airline wants you there and the package is good, ok. Forget local.
Lagos and Abuja: Lagos is hell but IMHO fantastic - jump in and swim with it. Chaos everywhere and yet somehow finally it works.... Abuja is boring, yawn. Upside - probably save money, get fit, close to nature blah blah. To me that's criteria for retirement and you're probably younger
A final point: if you're very smart (ignoring your previous posts...) and you have some link with a Nigerian (family, friend etc.), preferably with govt links, then you just might end up disgustingly rich in 10 years with yr own operation. Nigeria is the next China. Population forecast 2050 is 450 million. Yup u heard it 1st on PRUNE!