Chart star Winehouse died on July 23 last year from alcohol poisoning, but her mother is still coming to terms with the loss.
"There's a huge hole in my life - I used to speak to Amy every day. Sometimes I wake up sobbing," she said.
Janis wears one of the Rehab singer's rings as well as a Star of David necklace she wore as a child.
"She nibbled on it all the time, so it's got lots of marks on it," she added.
"I'm pretty sure she has come back as a butterfly, because she would love the freedom of flying."
Janis who lives in north London with husband Richard, said the family will mark the anniversary of her death in the Jewish tradition, with prayers and the lighting of a candle.
She is keen for people to hear more about the positive sides of her daughter.
"I want people to learn about the loving Amy, the lovely child, the daughter, the friend. She was just a regular kid who had a special talent."
And she advised other families who have addiction problems to give as much support as they can: "Just be there for them.
"The thing about addiction is that there is only one person who can do anything, and that's the addict. So you've just got to give them strength."
- PAA