¿Cómo comprar bitcoins y otras criptomonedas?

Hello there, I'm interested in learning more about how to buy bitcoins and other cryptocurrencies. Can you please walk me through the process step-by-step? I'm particularly curious about the different platforms I can use to purchase them, the safety measures I should take to protect my investments, and any fees or charges that might be involved. I'm a beginner in this space, so I'd appreciate any tips or advice you can offer to help me get started. Thank you in advance for your time and assistance.