She
tweeted : "Hi everybody! I haven't tweeted in a long time and I want to say hi! I've been really busy at FIDM, and I just finished my midterms.
"I am really loving school and I feel that I am learning a lot. I enjoy all of my classes and my teachers are excellent.
"I'm really appreciative of all that FIDM is giving me. I've been in school learning about the fashion business so I don't have time to tweet "FYI, this Twitter account is the only communication media that I am using.
"No other Twitter accounts or websites are mine! I only have this one. (sic) Before Wednesday (24.08.16), the last time Amanda tweeted was on February 23 when she wrote: "Hi everyone! I got a haircut! What do you think?"
Amanda turned 30 in April and her family's attorney, Tamar Arminak, revealed she was "happy and healthy".
The 'Easy A' actress returned to the fashion school in October 2015 after reportedly being kicked out the year before.
She allegedly turned up to class under the influence of marijuana and offered students money to do her homework.
The actress, who was released from a psychiatric facility in October
2014 after less than a month of treatment, was arrested for Driving Under the Influence [DUI] in 2012, but avoided jail time by completing inpatient treatment and was placed on three years' probation in early 2014.
Amanda was also arrested for a DUI in the early hours of September 28,
2014 but the Los Angeles City Attorney's Office opted not to press charges "after much deliberation and review".
She was placed under the conservatorship of her mother Lynn in August
2013 after she set fire to a driveway.
