u/fattymctrackpants

I am in the early stages of considering setting up an Amazon store. I currently own a business and am looking to get out of it in the next 2 years. It is seasonal so I have more time in winter to get this up and running. My question is should I pay for one of the courses that are out there? Is it worth it? Meaning can I realistically generate $5k a month from this. I know that’s a broad question given that nobody know me and everyone is different. I have a couple grand to get started and once I see traction I would be able to invest more. Another question, Is this arena saturated already?