Britney Spears' former assistant is sending a heartfelt plea to her old boss - to clean up her life and seek professional help. FELICIA CULOTTA, 41, who worked for the TOXIC singer for nearly a decade, is devastated by Spears' destructive behaviour since she filed for divorce from Kevin Federline last year (06). According to ThatOtherBlog.com, Culotta and others close to the singer are preparing for her to hit rock bottom and eventually check into rehab. In an excerpt from a letter allegedly penned by Culotta, the assistant explains, "I loved being with Britney for the past 9 and a half years. I enjoyed being a part of her dream, but now, am living my own dream. "I cherish all the incredible opportunities that came my way thru (sic) my job with Britney and am crushed/saddened/heart sick by the way her life is unfolding. "I want you to know we (as in her family and nearest and dearest - all of whom are not on the payroll anymore) are doing everything in our power to get help for Britney and all in our power not to pad the bottom or move the bottom, so when she does indeed hit rock bottom, she'll stand up and walk away from this whole fiasco a new, confident, changed, career driven Britney like we all knew and loved. "To see what is transpiring now, makes me feel a failure, defeated. I loved and believed in what I was a part of for the past 10 years and was so incredibly proud of Britney and all she'd become."