A distressed teenager told Snapchat friends he wanted to hang himself, before he was found dead in his family bathroom hours later, an inquest heard.
William Paddy, 14, broke down after having a row with his girlfriend before a friend, who cannot be named for legal reasons, tried to distract him online by playing video game Fortnite.
The pair also chatted via FaceTime, but the call ended when WiFi dropped out at around midnught.
William, from the Dorset village of Harman's Cross, then took a bottle of brandy and drank half of it, before telling friends on Snapchat he wanted to hang himself.
When the friend was able to get back online later he saw William's Snapchat messages and tried to speak to him but got no response.
The lad woke his mother and asked her to call William's mum as he was worried about his friend.
But she told him that she wasn't going to ring Mrs Paddy at 2am because William had a row with his girlfriend and that he would be okay by the morning.
In a statement she said: "I never thought even for a split second that Will would actually harm himself.
"Had I thought that for one second I would have rung Lesley and if she hadn't answered I would have driven to their house."
Mrs Paddy, 53, found William's body in the en suite bathroom at their home when she woke in the morning.
Clutching her son's favourite stuffed toy, Mrs Paddy broke down as she told the inquest how she performed CPR on him until an ambulance arrived.
She said: "I tried to save him but I couldn't."
A post mortem examination showed the cause of death was pressure on the neck.
Coroner Brendan Allen asked her if there were any indications with hindsight that William had intended to harm himself.
Mrs Paddy said: "Nothing at all. He was in really good spirits. He had lots of plans for the rest of the half-term, he even rang one of his friends and asked them to find him a new girlfriend the next day.
"He was arguing with his girlfriend over silly things and because he was very dramatic I think he drank half a bottle of brandy and was angry. I think he had no intention whatsoever of not being here the next day."
His blood alcohol level was 87mcg in 100ml of blood - just above the legal limit of 80mcg.
The Bournemouth inquest heard William was a day pupil at private Milton Abbey School in Dorset and had spent the May half-term of last year working at his mother's boat repair business in Poole.
He was a talented sportsman, a keen rugby player, snowboarder and horse rider.
Mr Allen said his death was an 'unimaginable tragedy'. He recorded a verdict of death by misadventure and said he was satisfied that William took his own life, but did not intend to do so.
He said the alcohol would have had some effect, increasing risk-taking behaviour and reducing the ability to make rational decisions.
He said: "Did he intend to? The evidence does not support that - no note, he had consumed alcohol, he had no history of self harm and had plans for the immediate future and long term future.
"He sent a message to his friend which created a situation where he could have been saved.
"I'm satisfied that Will did not intend to take his own life. What he was doing, it went wrong.
"It is an unimaginable tragedy that you have had to go through."
Since his death Mrs Paddy has set up a charity, #Willdoes, to help other young people's mental wellbeing through activities, which has already raised £60,000.
Sandra Redknapp, the wife of former football manager Harry Redknapp, is a patron of the charity.
Speaking after the inquest Mrs Paddy said: "For myself, family and all of Will's friends it was so important that Will is not defined by his passing but for the beautiful, special person that he was.
"Will was passionate about sports, empathetic and the most loving boy but also a typical teenager.
"He still shows me the way to carry on by founding the charity. Will, in everything he did he wrote 'Will does' and so now for me I must continue what Will does.
"If we can help more young people navigate through this minefield of life and achieve their dreams as Will would have wanted for himself and his friends.
"Will had time for everyone, he supported all his friends. He will continue to strive to help people through #Willdoes."
If anyone needs to speak to someone Samaritans are available 24/7 on 116 123 or by emailing jo@samaritans.org
