Yip! I saw your post on Substack but I could not see your earnings on the post.
I can assure you that your posts have the potential for high earnings on Steemit hence me prompting you to consider #steemexclusive and my vote. (•ิ‿•ิ)

As for the country tag. Curators look for a variety of posts, different communities, different countries, etc. Using a tag like #usa will add value to your post.