Your plant will not live thru winter so why don't you try to salvage what you can out of her? For the next month put some ferts on her, and give her some love, and lots of water, and see what you can do with her?

You may get her to a couple of feet by the time she goes off. Who knows? Or you may want to do just the opposite of that, and just give up, and rip her out now, and throw her away. After all thats what you are doing by treating her like you are now.