How do you use crypto exchange?

As a cryptocurrency enthusiast, I'm curious to know how you utilize crypto exchanges effectively. Could you elaborate on the steps you take when trading on these platforms? Specifically, do you follow a certain strategy for selecting coins to trade? How do you ensure the security of your transactions and account? Also, do you use any advanced trading tools or features offered by the exchange? I'd appreciate any insights you can share on how to maximize profits while minimizing risks on a crypto exchange.