Bro I think you should first of all get a proper knowledge of crypto before thinking to get involved with it as there is a very high volatility involved in it, which implies that nothing (profit/loss) is guaranteed in crypto.
Secondly I also want you to understand that Bitcoin or crypto isn't an alternative for banks  as I'm very sure that there are very few Marchants who will want to accept Bitcoin as a legal tender because even with the cashless policy in Nigeria, alot of persons and businesses are weeping because they can't do mobile transactions and I'm sure the transaction fee of crypto is another area of concentration.
So personally I wouldn't advice you to transfer all your money into crypto but you should rather invest what you're willing to lose.