Please no sarcasm
Starfish, I believe the number of people who improve their situation is actually between 1 and 2%. I think someone posted the number and source earlier in this (now 14 page) thread.
I don't buy it. I read the post. The numbers may be true, but it need not be true for you. Too many have defied the odds. We need to hear more of the success stories, rather than the reasons to not try.