The former England midfielder is currently in rehab in the United States but phoned his long-time friend Jimmy 'Five Bellies' Gardner this week and told him about his condition.
In quotes picked up by the Sunday Mirror, Gascoigne said to Gardner: "The drink nearly finished me off this time. I know I’ve never been as bad as this before. But I’m not ready to give up the fight. "
The paper says that Gazza is determined to survive as he dreams of seeing his nephew Cameron, 11, play football for Newcastle United.
Cameron is already on Newcastle's books and Gascoigne regularly made 700-mile round trips from Bournemouth to see him play.
According to Gardner, Cameron has become Gascoigne's 'sole focus'.
Gardner also told the Mirror the impression Gascoigne gave off on the phone.
"Paul sounded frail and weak and scared.
"But I could hear something else in his voice too. I could hear grit and determination.
"No one knows Paul like I do and I can tell you, he's not for throwing in the towel.
"I love him to his bones. I can't think about him not being here. He'll beat the booze. He's done it before and he'll do it again."
Gascoigne's friends clubbed together to pay for the £6,000-a-week detox treatment in January after the Italia 90 and Euro 96 legend appeared unwell and shaking during a charity appearance in Northampton, when he broke down sobbing on stage in front of a room full of fans.
The former Tottenham Hotspur, Lazio and Newcastle United star played 57 times for England.