question????

i know i should know this already but cud someone please tell me how i can find out easiest when the last time i posted in a thread would be? Ive been just going back and looking through page after page and thats getting way to time consumming however i dont want to exceed my once a week per thread.
Thank alot
Eliana sparks

Click on your own profile > statistics > find all posts by Eliana sparks.

That limits things to just your own posts.