Hello Tavi,
I understand you want to sell and deliver products to your customers in Romania (and other EU countries). But biggest mistake is using only China suppliers.
Romania is maybe the biggest Cash on Delivery country in Europe, so if you want to be successfull dropshipping there, you should find supplier like eComZone, which will:
a) allow you to sell their products and deliver packages to customers in Romania in just 5 days
b) allow you to offer multiple payment methods on your store (including Cash on Delivery), so you can increase your conversion rate and get more revenue
There is no mistake in using suppliers from China, but if you want to be really sucessfully, eComZone supplier is the solution: https://www.ecomzone.eu/dropshipping-service-lp