I can definitely relate to this problem. Here are some of the things that I used to do, but I am much, much better at it now:
1). Hate making a left-hand turn when there are a line of cars behind me and then turn right and find somewhere to turn around to go where I really intended to go.
2). I never follow anyone too close no matter how slow they are going. I will just slow down myself or rarely, if ever, go around them.
3). I really get anxious when someone follows me closely. I will speed up and this does not work. I always have to check my rear-view mirror and hoping that they could read my mind to stop following me so damn close!!
4). I used to get really nervous when other people are riding with me, but this situation is much better and I just drive like normal and don't worry about what they may or may not be thinking.
5). For some reason, when traffic is busy, I would always be nervous when I'm the first one at a red light. I used to feel like all the people in the cars that were behind and beside me were staring at me and I would get very anxious and paranoid waiting for the light to turn green.
These are some of my pet peeves that I have conquered for the most part!