+1.
Put the poor thing out to pasteur. She deserves it. My GT was also at the bottom of the pecking order in my overstocked tank. No permanent damage was done, but as soon as the other fish grew up and out of the tank (given their own tanks or given away), I made sure to give it the best stress-free life possible. It's the least I could do, and the least you can do.
But hey everyone, chill with the flaming. I'm sure we have ALL made fish mistakes and irresponsible decisions. It's the curse of loving fishkeeping. Sometimes your eyes are bigger than your tank and you don't realize how fast and how large something grows.
I'm sure the OP has learned from his mistakes, just as we have learned from ours. You trolls are about 4 years too late so save it.