Maria quit her job as the head of a secondary school in the east of England earlier this year because of stress caused by a group of governors.
She said that within her first two years at the school she had cut truancy and introduced an effective behaviour policy and she could not understand why the governors criticised her.
"I really enjoyed my job," the 49-year-old told the Teacher Support Network. "I could not understand why these governors were so critical about the work I was doing.
"Although this group of governors no longer have any direct dealings with the school, they do have a relationship with some of the long-term staff and are still criticising my management.
"As a result, I have suffered constant jibes and demoralising remarks about my performance over a long period of time.
"The whole situation has stressed me out so much that I have now decided to move on from this school and rebuild my life. I know I am a good headteacher but I was put under so much unnecessary pressure that I could not carry on.
"I feel very strongly that headteachers cannot take full and total responsibility for everything that happens in a school and all staff should be united in working together for the benefit of the learning environment, rather than getting embroiled in bullying tactics and a blame culture."