Doing a PhD can get into your head. Sometimes I think that what I am doing is amazing. Other times I think that what I am doing isn't all that interesting, and I will be happy just to pass the viva at the end of all this. Pretty much every day is a rollercoaster of highs and lows. Pretty much everyday I am tempted to think that what I do will change the world. Pretty much everyday I am ready to give up and move on.