I honestly think that the process of doing a dissertation is like bringing you through to insanity of being PMS-y. You get so sick and nauseous trying to figure things out, then you get it. It's very motivating to be able to take that big leap forward. Just when you think you've got it, you actually don't. I thought I was on the right track and now I'm back to zero. It takes so much.. perseverance and and belief. Hate this feeling of being teased over and over again.