Hey there @Sosuke,
Things can get frustrating when picking up a new platform or skill - not to worry. Community members and support staff are a great resource to start with. If you think you’re up for a video course, why not give Build Your Startup a try? It’s a video course that takes a realistic project-based approach to building startups with Bubble’s platform. If you haven’t had any luck figuring it out on your own, maybe get some help? Give the course a stab and see what you learn. There’s a new app to build pretty frequently and with lifetime updates, you pay just once. Take a look at my post from earlier, see if the course might help you shape up your marketplace app, and go from there. Hopefully you find what you’re looking for.
Post: Udemy Course: Build A Startup with Bubble!
Bubble can take some time to pick up, but once you do, the possibilities are indeed limitless.