How to buy quantum cryptocurrency?

I'm interested in understanding the process of purchasing quantum cryptocurrency. Could you please break down the steps for a beginner? Firstly, where do I find a reliable exchange that lists quantum cryptos? Secondly, what are the key factors I should consider when choosing a wallet to store my quantum tokens? Additionally, are there any specific requirements or restrictions for purchasing quantum cryptos, such as minimum purchase amounts or geographical limitations? Finally, how can I ensure the security of my transactions and holdings, given the novelty of quantum cryptos? Thank you for your assistance in navigating this emerging field.