How do I buy and sell Crypto on bitmart?

Could you please elaborate on the process of buying and selling cryptocurrencies on BitMart? As a newcomer to the crypto world, I'm curious about the steps involved in navigating this platform. I've heard BitMart offers a user-friendly interface and a wide range of cryptocurrencies, but I'm not sure where to start. Could you guide me through the registration process, depositing funds, selecting a cryptocurrency to buy, placing a buy order, selling my holdings, and withdrawing my profits? I'd appreciate any advice you can provide on making safe and informed trades on BitMart.