Hi Fred! If you click on your username at the left of any of your posts, a menu should show up. Then, if you click Find more Posts by Fred89, a page that lists all of your posts will come up. Additionally, if you go to your profile and click statistics, there should be a clickable link that says find all posts by Fred89. Hope this helps!
Go to your profile, hit the "Statistics" tab and click "Find all posts by Fred89" Edit: wow you are one speedy moderino