Writing the code for my own block chain and crypto currency

Writing your own code for a blockchain and cryptocurrency is like building your own city. You create a system of roads and buildings with rules that govern how people interact with the city. In the case of blockchain and cryptocurrency, you create a system of computers, called nodes, that store data securely and process transactions. Transactions in blockchain and cryptocurrency are like money exchanges, except instead of exchanging physical money, you are exchanging digital money. To create your own blockchain and cryptocurrency, you need to write code that will define how the nodes on the network communicate and how the transactions are processed. This code can be complex, but with some practice and hard work, anyone can write their own code to create their own blockchain and cryptocurrency. A fun fact: the first blockchain, Bitcoin, was created in 2008 and has been growing ever since. Now, over 10,000 different cryptocurrencies exist!