Bitcoin is difficult to explain. I also felt difficulties in understanding bitcoin for the firs time. Let's share how to explain bitcoin to children of teenagers. In My country I can say 98% children don't know bitcoin. In fact, bitcoin can be future money. If the children not familiar with cryptocurrency or bitcoin, how can they face the digital era in the future.
you don't have to be so hard about understanding and explaining bitcoin either for yourself or others.
think of bitcoin this way, you only need to understand how to use it just the way you should only understand how to use a credit card. do you know how a credit card is created? do you know what encryption it uses? do you know how a credit card atm connects to the server and pays you money,...
then you should treat bitcoin the same way too. only learn how to create a wallet (you can even use a wallet like coinbase and not worry about anything else except them banning your account) and also hot to send/receive bitcoin.
the rest of technical stuff like mining, how the network works, about encryption,.... is only for those who are interested in technical stuff