"I felt that I ostracized myself by my behavior, by the past, by living with all the regrets of my mistakes, that I sort of wore a hair shirt and beat myself up most of the day thinking and regretting why did I make such a mistake? Why have I made so many mistakes?"

In this quote, Sarah Ferguson is revealing her feelings of isolation and self-blame. She thinks that her own actions and past errors have actually triggered her to be left out from others and to constantly slam herself. She compares this feeling to using a "hair t-shirt," a garment generally used as a kind of penance or self-punishment. She also points out regretting her errors and questioning why she made them in the first location. This quote highlights the internal battle and guilt that Ferguson might have experienced, and the weight of her previous actions on her present mindset.