2013 was a hard year for Amanda Bynes, but in time for the actress' 28th birthday, she appears to have turned her life back around.

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The actress, who one year ago was acting out and worrying friends, family and fans with troubling tweets and odd behaviors, is celebrating her 28th birthday today and appears to be much happier and healthier than she was on her 27th.

The Daily Mail reported on the actress' bizarre birthday behavior last year, noting how the actress was pictured walking around New York City aimlessly and alone, in a disheveled state.

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At the time, she was sporting pink tinted hair which appeared matted, and was wearing a fur-trimmed hooded jacket, dark sunglasses, black tracksuit pants, a cotton top and sandals.

Just a few weeks prior to those troubling photos being taken, the actress had written one of her most controversial tweets about rapper Drake.

"I want @drake to murder my vagina," she wrote at the time.

Though she hasn't posted new photos on her Twitter account since March 21, the actress is sporting a much different look these days. In photos she posted from her debut at the Fashion Institute of Design and Merchandising, she sported high-waisted cream pants and a black top, and wore her blonde waves down.

After the actress turned 27, she continued exhibiting behavior that concerned those surrounding her. After setting a fire in a driveway in Thousand Oaks, Calif. in July of last year, she was placed in an involuntary psychiatric hold at a local hospital, where she was diagnosed with bipolar disorder and schizophrenia.

She left a rehab facility where she had further received treatment in December 2013. Since then, she has enrolled in classes at the Fashion Institute and reportedly did so well that she has signed up for classes once again.

"If she was offered an acting job anytime soon, she may not take it because she's so focused on school," a source told E! News March 20.