You can do this on the search page. If you go https://www.sqlservercentral.com/Forums/Search
, make sure your on advanced search, and type your username in the username field. Then on the Search Discussions box, click the down arrow, and select the forums you want (you'll need to expand the categories, I noticed that searching in SQL Server 2016 gave no result for myself, but searching in SQL Server 2016 - Development and T-SQL gave plenty).
Little long winded, but it gets you there.
Excuse my typos and sometimes awful grammar. My fingers work faster than my brain does :-P
Please always remember to encapsulate your code in IFCode Markup. For example [code=sql] [/code]
to read Jeffs Guide on how to post SQL questions, and get swift and helpful answers from the community