The 'Born This Way' singer hasn't felt at her best over the past 12 months, but says she's now back to her best, reports contactmusic.com.
"Today is a really happy day for me. The past year was a challenge, and I'm so happy to have my spirit back. I felt in chains at times," she said in an an open letter to fans on her website Gaga Daily.
"Whether it be the record label disagreeing with me on single choices, or directors who could only create an idea of 'Gaga' or what I've 'done before' and weren't able to move forward.
Then there were all the personal moments. Betrayed by lifelong friends, mentors I've had for years suddenly taking advantage of me, and a massive struggle with my body image," she added.