A 'beautiful' mum died suddenly hours after she laughed and played with her children in the garden
She had taken a video of the fun and frolics, but Jade Roberts died shortly after playing with her loved ones.
Tracey Roberts said her daughter Jade suffered from anxiety and depression.
The gran added Jade was an "unbelievable mum" to two sons, who are now aged two and three the Liverpool Echo reports.
Tracey, a trained psychotherapist, is now setting up a mental health charity in her daughter's name, which will be called Jade's Place.
People have also paid tributes to her daughter and sent their condolences to her family on social media.
Writing on Facebook Jolanda Jones said: "My deepest condolences."
Karen Garcia added: "Heartbreaking so sad, my deepest condolences to her family and beautiful children."
Sheila Orourke Murphy also said: "From one mum to another mum, my thoughts and prayers are with you, may your beautiful daughter rest in peace."
Gail Veronica said: "Sad story reading it brought tears to my eyes what a beautiful girl she was and still is, thinking of her family and friends."
Julie Lloyd added: "Thinking of her special boys and her family."
Jade's mum Tracey, 54, said: "My life will never be the same again because Jade is my first little girl, she was my first one. I've got three children.
"My heart has been ripped out and the pain, I've never experienced pain like it in my life.
"As Jade's mum, I knew Jade had anxiety and depression.
"She would talk to me about her negative thoughts but I never ever thought for one minute that she would have done what she did to herself because she loves her two little boys and she adored me.
"As a mum not being able to see what was really going on in her head, the torment she was in."
Jade left a letter to her loved ones before her death in April last year, which was later discovered inside her diary.
Tracey said she is now determined to help other people who are suffering from their mental health by setting up a charity in Jade's memory.
The charity will provide a range of different workshops including on anxiety, depression, self-harm and suicide prevention and will also provide a counselling service, mentors and holistic therapists.
Tracey said she and another psychotherapist will carry out evaluations on each client and she also hopes to offer a drop-in service.
A fundraising night will raise money for the charity, which Tracey hopes to get up and running in time for Jade's 27th birthday on August 7.
A Gofundme page has also been set up with all donations going towards setting up the new charity.
Tracey said: "I think what's opened my eyes as a mum is not being able to see it because I was with Jade that day. I was with her until 4 o'clock, I left at 4 o'clock to go to work and I didn't see any signs.
"It's opened my eyes because you can see a broken leg, you can see a black eye, but you can't see what's going on in someone's mind and I never ever thought for one minute that Jade would have done what she did.
"The passion and determination that I have now [...] that's why the suicide prevention is going to be one of the main workshops where people can in a safe and confidential environment talk about what's really going on in their head."
If you're struggling and need to talk, the Samaritans operate a free helpline open 24/7 on 116 123. Alternatively, you can email jo@samaritans.org or visit their site to find your local branch