If you're new to Shopify and Oberlo, I'd highly recommend starting with our How to Start a Dropshipping Business course on Shopify Academy. It's totally free and from the course description:
"You’ll learn how to find products to sell without ever worrying about inventory or shipping thanks to dropshipping. Dropshipping is a great way to start an ecommerce business because it doesn’t require a lot of money or time to start. All you need is an idea and a little guidance. You’ll learn everything from how to validate a product and business idea, to finding a supplier and getting your store set up for its first sale."
When adding products, we would strongly recommend changing your product titles and descriptions to something unique to your brand/style. Check out this product for more on what not to do.
Further recommended reading: