The former X Factor judge walked free from court last week after a charge of being involved in the supply of drugs was dropped. She had denied the charge.
Today, she's been speaking out in depth for the first time about the difficulties of the past year – and those friends who stuck by her side.
"I locked myself off a lot from the world so there are only a few people who could contact me," she told ITV's Good Morning Britain. "Marvin and Rochelle are two people that really had my back throughout – and Niall [Horan] and Rylan [Clark]."
Tulisa, 26, said she was devastated when she was duped by a Sunday newspaper as part of an undercover sting. She was accused of offering to help introduce an undercover reporter to a drug dealer, which she denied.
"I felt a million emotions. How could I have not seen it. I felt like my life was over," said Tulisa. "Like someone had taken my life away. They took it out of my hands and took it away in a second."
She added: "There are different levels of depression - when I got low, I got really really low. But I picked myself up quicker than most and got on with things the best I could. My lowest point was when I found out I was going to be officially charged. It had already been dragging on for so long. When I found out I was being charged I lost the faith."
Tulisa said her experiences had made it difficult for her to trust people now.
"It's made me a paranoid wreck when it comes to people. You are always looking over your shoulder - who is out to get me next."
She is now hoping to move forward with her life and career, but admitted she's not sure what the future holds.
"I have no idea what is going to happen - no idea how the public will feel about me coming back. I've been portrayed as a monster. I'm going to try and go back to what I love again."
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