What to do

hi i design. and get them out in my stores. as well as at the spread shirt shop. But when I want to share my pictures of clothes and links to Facebook, it works. mem not directly to Instagram. ? then I don’t know how to open a link or so I can sell on Youtube. I see all the posts. but I need to know how to add your shop there…! I can’t pay for marketing yet I have to sell first to afford such expensive marketing as they have on Facebook and Instagram. How-to ?

There is a space in the YouTube video description, when you are providing information about your video, where you can add links