How do I start selling products on Amazon? is it easy ? do you think I can make sales too?
As a new seller, definitely review all Amazon policies, guidelines and help pages.
Learn about Amazon’s performance standards to know, which factors affect your Account Health and could result in a suspension if not maintained below the recommended targets:
Go through the Seller University:
https://sellercentral.amazon.com/learn/courses1
Review Amazon returns policy, which affects all sellers:
https://www.amazon.com/gp/help/customer/display.html?ie=UTF8&nodeId=15015721
And regarding inventory, don’t start by buying items from Alibaba. As a newbie, I would recommend you to begin with some goods purchased directly from US/EU manufacturers who provide you valid invoices, until you learn how the entire site works and establish a selling history.
New sellers are often subject to random account reviews and asked to submit invoices, this is the main reason why you should leave purchasing from China for later.