I mostly use the source editor over the visual editor, but use the latter for referencing and I use ProveIt for citations, as I'm not too good at using the templates. I joined Wikipedia to try and improve the article Gulval. I am currently creating an article on Dingle Farm Tearoom, although I am on-and-off with this.
Template messages vary in their placement. For example, a {{merge}} notice goes at the top of the article, but the {{stub}} message goes at the bottom. Read the documentation at the bottom of a template for instructions on how to make use of it.