Arugh!!!

I was working on my sox, and I was just about to turn the heel when I pulled on the yarn to see how much I had left. I have 18'' left!!! For the rest of the heel and the anklet top!!! I don't know what to do. First I think that I am going to rip back the heel a few rows and try that. The yarn is really squishy and elastic, I might be able to make that work. If not, I am going to have to wait until new job starts (no new job yet) and so money comes back my way. So it will hiebrnate if I can't fix it. Poo!!!!!!