1) A way to get more than enough income (preferably a source you can earn from anywhere in the world).
2) A plan to relocate, get permanent residence or a second passport in a better country.
3) A solid Crypto portfolio.
Let me explain more:
First, the plan B I am talking about here is about having a second option for yourself and your family based on the current instability of Nigeria and our kwashiokor economy.
You don't want to join people who keep saying "Nigeria go better"
Maybe. So...
1) You need a source of income that can give you at least N500k a month. This is the type of income that can help you make real plans.
If you are struggling to survive, it will be almost impossible for you to execute any plan B.