Hey buddy I actually teach people how to dropship. Bhopkins is correct, what I like to do is first start off dropshipping items and then buy in bulk the items I know will sell continuously you get better discounts that way. or you can get a line of credit from your supplier . Yes you have to identify a niche to sell in also you need to always continue to improve on your marketing get as many people to see your store as possible. You can, #1 pay someone to do this for you or you can #2 take baby steps by listing items on Pintrest, facebook and various social media sites also there are some paid form of advertisement but best know what your doing or you can kill some money on paid advertisements. I dropship some high dollar modern furniture and I gladly give Mr Mark zuckerberg a hundred or more dollars a month to get those sales. Also if your starting to have success on eBay just copy that success over to eBid, iOffer, Bonanza, Storeenvy and other buy now or auction sites. FYI if your selling it on eBay you can for sure sell it on those other sites as well. Also if you have a unique product don't be afraid to open your own store via a ecommerce platform like shopify, bigcommerce, volusion ect.. Hopefully I help you out. I have a youtube channel dedicated to teaching people how to dropship also a facebook page. best of luck