How do I buy cryptocurrencies on Bitfinex?

Hello, could you please explain the process of buying cryptocurrencies on Bitfinex in detail? I'm a bit new to this and want to make sure I understand every step correctly. Specifically, what are the necessary steps to set up an account, verify my identity, and fund my account with fiat currency or other cryptocurrencies? Also, what are the fees associated with buying cryptocurrencies on Bitfinex, and are there any limitations or restrictions I should be aware of? Thank you in advance for your help.