Chinese reviewer on marketplaces

Hello everyone My name is Alexander, I am an individual entrepreneur and a father with many children)
I want to share with everyone information about whether it is easy to become a supplier of large marketplaces?
I will tell you what difficulties I face 
I will show you all the nuances of cooperation with marketplaces
I hope that I will save you from the mistakes that I have made. 

I also started shooting original video reviews of goods from China
There are drawings of these goods in the cart, read the message in the attached comment

I will be grateful for the subscription, friends, this is very important to me!)