If you need help with issues related to self-harm, you can go to BBC Advice.
Willow Smith has revealed she "lost her sanity" and used to self-harm as a child.
Childline: Self-harm (www.childline.org.uk)
Whip My Hair peaked at number two in the UK and was her most successful single.
"After all of that settled down and there was a lull, I was just listening to a lot of dark music and it was just so crazy," she added.
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She says she stopped "one night [when] I was just like 'this is actually psychotic'.
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"And after that, I just stopped."
She said her brother Jaden and half-brother Trey didn't know about it and that she only told one friend about it.
"I never talk about it because it was such a short, weird point in my life. But you have to pull yourself out of it."
She told her mum, Jada Pinkett Smith, and grandmother, Adrienne Banfield-Norrison, on the web series Red Table Talk, that she stopped five years ago.
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Her mum and grandmother appeared shocked when she told them.
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Mind: Self-harm (www.mind.org.uk)
"I was just plunged into this black hole and I was cutting myself."
Willow, who is also the daughter of Will Smith, was thrust into the limelight when she signed to Jay-Z's record label Roc Nation aged nine.
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Her mum says she "never saw any signs" her daughter was self-harming.
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The 17-year-old said it happened after the exposure of her song Whip My Hair, which was released in 2010 - when she was nine years old.
She's released two albums so far - 2015's Ardipithecus and The 1st, which was released in 2017.
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"I was kind of just in this grey area of like 'Who am I? Do I have a purpose? Is there anything that I can do beyond this?'"
Explaining why she turned to self-harm, she said: "I honestly felt like I was experiencing so much emotional pain but my physical circumstances weren't reflecting that."
Willow added: "A lot of adolescent girls struggle with self-harm."
Willow said it happened after the hype died down from Whip My Hair and she had just cancelled plans to finish her album.
The Site: Self-harm (www.thesite.org)
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