The problem you are finding is unfortunately being experienced by quite a lot, it's getting harder to compete on eBay with the list of wholesalers and large sellers using the platform for their own business.
Unfortunately there is no other site that can equal eBay in regards to traffic flow, and that's why it attracts the big end of town, not just the small sellers. I would suggest looking at establishing your own website, then use eBay as more of a marketing tool.
Building your own site is a lot more work, and a lot more effort and expense to promote your goods, but I feel that it is the best alternative for those wanting to survive long term in online sales, because eBay is only going to get harder for us all.