How do I get started with dYdX?

As a newcomer to the world of cryptocurrency trading, I'm curious about how to get started with dYdX. Could you please explain the process in a step-by-step manner? I'd like to understand the initial setup, such as creating an account, depositing funds, and selecting my first trade. Additionally, could you highlight any important considerations or safety measures I should be aware of before diving into trading on dYdX? Your guidance would be invaluable in helping me navigate this exciting yet complex landscape.