Can you please explain to me the process of sending and receiving funds through a Coinbase wallet address? I'm a bit confused about the steps involved and would appreciate a step-by-step guide. Specifically, I'd like to know how to locate my wallet address, share it with someone who wants to send me cryptocurrency, and how to receive the funds once they've been sent. Additionally, if there are any security measures I should take to protect my wallet, I'd love to hear about those as well.