Problem Making Facebook Ads Work For My Ecommerce Store

I'm really at my wits ends trying to figure out how to generate sales for my eCommerce store using Facebook Ads.

I have a Shopify dropshipping business in the camping / hiking / survival preparedness niche.

I'm using Fred Lam's ZeroUp software and training.

I understand the idea is to do your product research and find a product that is selling, import it to your website from AliExpress, then create a Facebook Ad for testing.

Over the past few weeks I have tried probably a dozen products, and I've only gotten around 3 orders from all the ads I've run combined.

I always start testing my Ads at $5 a day.

My most success came when I was testing a solar powered flashlight. I was selling it for $35 and within a couple hours of posting it, I had a guy buy 2 of them. I was so excited. But I didn't get a single order after that.

I just feel like I must have some setting in Facebook or on my website set incorrectly for me to have seen such poor success thus far.

I'm hoping someone here who's already had success running Facebook ads for eCommerce might be able to help me.

Thanks!