Hello @MaryA_Marion,
You can enter a keyword or phrase (e.g. "Wilcoxon signed rank") into the search field of the forum, search in "All community" and then restrict the search results (among other criteria) to your own posts:
If needed, you can then replace the search term by something neutral such as "to" or "I", etc., in order to request a list of virtually all (?) your posts. I'm not quite sure, though, if the results are really complete.