Please start your own thread
if you simply add your story to an existing thread it causes confusion and problems.
People don't know whether they are responding to your story or the story of the person who owns the thread.
Starting your own thread will draw more attention to it from people who would like to help you.
Starting your own thread will add to the amount of hits in Google searches and that means that people with similar issues are more likely to find out about your story and either come along to help you or to post their own stories.
Please don't hijack someone else's thread.
Start your own thread