Nigeria is blessed with enormous energy resources. It needs them locally, but exports them to get foreign money it does not really need. In any economy, money competes with money. The more there is, the less each unit is worth. This is especially true of foreign money, but easiest to see with domestic. Look at Zimbabwe. Everyone has oodles of money, but no one has any MONEY. Use your oil and gas to solve your local problems. Export little, as your descendants will want some too. Help those fuel addicts in Europe and America solve their problems by denying them another 'fix'. Develop and exploit non fossil energy sources in your land. You have plenty, just in the biomass in your Typha infestation. You have tropical sunlight to use. Make your nation rich.