Great to hear you have some traffic coming to your store. Normally dropshippers look for a 1-2% conversions, meaning after 100 visitors you'd ideally have 1 sale. So don't distress!
I would suggest going to your Shopify Orders > Abandoned Checkouts to see if customers are at least adding products to their cart. Also what products. Take that information and start advertising those products. This way as you start boosting the traffic you can focus on the most popular products and start seeing conversions!
Just because you don't see a sale doesn't mean it isn't useful. Use the Shopify admin to see what is popular and then use that as you continue. This really helped me!
All the best!