How to start using Gemini?

Hello there, I'm curious about how to get started with Gemini, the popular cryptocurrency exchange platform. Can you guide me through the process? What are the first steps I need to take to set up an account and start trading on Gemini? I'm also interested in knowing if there are any verification processes involved and what types of cryptocurrencies are supported on the platform. Additionally, are there any fees associated with using Gemini, and how can I ensure my funds are kept secure? Thanks in advance for your help!