How to buy Crypto on changelly?

Could you elaborate on the steps involved in purchasing cryptocurrency on Changelly? As a beginner in the crypto world, I'm curious about the process. Do I need to register an account first? How do I select the cryptocurrency I want to buy? And what payment methods are accepted? Also, are there any fees associated with the transaction? It would be great if you could provide a step-by-step guide, highlighting any potential risks or considerations I should be aware of before making my first purchase. Thank you for your assistance in navigating this new territory.