You seem to misunderstand the use of the tags field. See https://steemit.com/welcome for tips on how to use Steemit. Tags separate themselves by spaces on 'steemit.com' so something like "black friday" becomes two tags: "black" and "friday".

Basically tags are one word subject phrases so that others in topic of say "life" or "relatonships" might find other posts about the same thing. It helps to look at http://www.steemit.com/tags to help you decide what tags are most relevant to your post.