The New Boss is Awful, What Should I Do?

Dear Career Experts, I have been working at the same company and in the same job for 12 years. I've never had a boss and was always very self-sufficient. The head of the division recently decided that I needed a leader. In all that time, I never had any problems. But now, on a daily basis, I have been yelled at and written-up for minor things. I am starting to have health issues because of this. For example, I sent an e mail to a person to notify them of some work that I will be doing and I worded it wrong. I got a 10-minute lecture on how to do it the right way. I can't seem to win. I get sick because I have to come in to work to face this man every day. I am looking to get out but jobs are not that easy to find. Can you give some words of wisdom? Our Twitter Advice Project (T.A.P.) is no longer an active campaign. To find an answer to the above question, please use the "Search" box in the right-hand column of this website.