There is not one definitive answer to this question, as the best way to find all of your posts on Google may vary depending on your individual situation. However, some tips that may be helpful include using the search bar on Google (type in "site:example.com {your name}" to search for all posts by you on a specific website), as well as looking through your Google activity history (if you're signed in to your Google account, you can view your activity history by going to https://myaccount.google.com/activitylog). Additionally, you can try using a Google search operator such as "inurl:" to help narrow down your results.
