How do I start trading on dYdX?

How do I get started with trading on dYdX? Could you please guide me through the initial steps? I'm a bit new to the crypto trading world and would appreciate a clear explanation of the process. What kind of account do I need to create? Is there a specific amount of funds I should have to start trading? Are there any specific trading pairs or markets that are recommended for beginners? Also, how safe is dYdX as a trading platform? I'd like to know about its security measures and if there have been any issues in the past. Thank you for your help in getting me started with dYdX trading!