Editors do not have time to play mind-reading games. Your query should be as specific and to the point as possible. And the quickest way to be branded an amateur is to babble about unrelated experiences in an attempt to appear more qualified. If you have no clips to share, your query and your article must be your ambassadors. Wait patiently for a reply .
Impatience is a very unattractive attribute.
Acting that way can give your work a one-way ticket to the recycle bin. Instead use the time to perform additional market research, to have a backup plan ready in case your piece cannot be used by the first editor. Having several manuscripts in circulation at the same time is a fine way to keep from worrying about a particular submission. Keep track of your submissions, receipts of acceptance, payments, etc. A simple wall calendar gives me just enough space to jot notes about each submission.