How to trade Astroport?

Hello there, I'm curious about trading on Astroport. Could you please guide me through the process? What are the essential steps to get started? Do I need to have a specific amount of cryptocurrency in my wallet before I can begin trading? Additionally, are there any fees associated with trading on Astroport? Lastly, what safety measures does the platform take to ensure the security of my funds? Thank you in advance for your assistance.