Hey so i bought one of those $20 "ready to launch" websites but im having trouble...

[ReinaM3]

Although they sent me a video to walk me through giving me my ownership of the websites and how to 'be successful" in launching. The information the instructor had on his screen was way different then my screen. 

If you have bought one of these shops and been successful setting up please help me out 

Do i need to set the variants on products or do i just leave them as is?

Do i need a llc or some kind of business numbers to be verified? (it wouldnt let me proceed without)

My biggest question is how do i know if all the products that were picked for me are connected to the zendrop supplier and if it is ,will actually be the right product?