This does not solve your issue in anyway: what you lack is physical cash as it has become difficult to withdraw cash from the bank due to the recent CBN policies on the naira, thus even if you exchange all your naira for Bitcoins, you still do not have physical cash, but Bitcoins in your wallet.
Since you don't know how Bitcoin works, i'd advice you hodl your money in the bank until you understand what you are doing to avoid loss.