Ha, I understand... I also have a tendency to shut myself in my cave and not talk to anyone, and really have only managed to break out of that in the last few years...
One strategy you could use, is to try focusing on the other aspects of your game for now, and just use placeholders and/or crappy animations... then you can share it as a demo or prototype and see if any artists want to jump on board. It is easier to find collaborators when you actually have a foundation that they can work on. It can be tough though as you'll be staring at your junky placeholders imagining how pretty they could be while forcing yourself to work on the rest of it ^.^