Bitcoin.
Many talked more about btc but I actually haven't come to really know how it works and how you can convert btc in naira for direct usage.
I will really appreciate anyone that can spare out time to educate me on it's mining and conversion process
Is the Naira you mean the currency of Nigeria?
One of the exchanges that support crypto asset trading in Nigeria is Luno (review:
https://www.buybitcoinworldwide.com/exchanges/luno/).
Note: I am not affiliated with Luno. Please look for more detailed information before you use it.
Regarding the definition of Bitcoin and how it works, there are many resources that you can learn as an introductory lesson to get to know it, e.g.,
https://bitcoin.org/en/getting-started ;
https://www.lopp.net/bitcoin-information.html.
A lot of information about Bitcoin is also spread on this forum.