I have always been confused about crypto currencies and how they work
What exactly is confusing about it, you just need a time to learn about it, have you tried out something on your own, have you created time to learning cryptocurrency.
how they are stabilised and regulated
Cryptocurrencies are volatile, which means they are not stable, bitcoin is not centralized, it's a decentralized digital currency and is not regulated by central authorities, it works strictly by it protocols on the blockchain technology and cannot be altered or changed by anyone.