How do I make a purchase on GOAT?

Sure, here's a simulated questioner's tone description of the process of making a purchase on GOAT, keeping the word count to around 300 words: "Hey there, I'm new to GOAT and I'm wondering how exactly I can make a purchase on the platform. Can you walk me through the steps? First, I understand I need to create an account and set up my payment method. Once that's done, how do I find the sneakers I want? Is there a search bar or can I browse by category? When I find the perfect pair, what's the next step? Do I just click 'buy now' and that's it? Or do I need to wait for the seller to accept my offer? Also, what about shipping and delivery? How long does it usually take for my sneakers to arrive? And are there any additional fees I should be aware of? Lastly, what happens if there's an issue with my purchase? Is there a return policy in place? I want to make sure I'm fully protected as a buyer. Thanks for your help! I'm excited to get started on GOAT and add some new kicks to my collection.