amber-portwood-jail-460.jpgMTV

Former Teen Mom star Amber Portwood was released from prison on Monday, nearly four years earlier than her scheduled date.

The troubled reality TV actress was arrested in December of 2011 on felony drug charges after a probation officer found her with a fairly sufficient amount of several different prescription pills, according to prosecutors. Portwood initially avoided time behind bars by agreeing to a plea deal that included rehab, but after dropping out of the program and failing a drug test in May of 2012, she was sentenced to five years in Indiana's Rockville Correctional Facility.

She began serving her sentence in June of 2012, but in September her brother Shawn tweeted that she was going to be let out early. "Congratulations sis. I am so happy that you are finally being released," he wrote. "You did everything you needed to do to get out long before 5 years."

Portwood has a long history of run-ins with the law. In November of 2010 she was charged with domestic violence against her boyfriend Gary Shirley and in June of 2011 she attempted to commit suicide and was subsequently sent to rehab at Seasons Recovery Center in Malibu.

Let's hope she can keep it together this time...