Former champion boxer Ricky Hatton said his proudest achievement was "the fanbase that I had", but admitted to feeling like he had "let down 30,000 people" when he lost to Floyd Mayweather.
In a frank interview about his boxing career, breakdown and rehabilitation, the former Light Welterweight and Welterweight champion said his depression was "about the size of a one pence piece" after losing to Mayweather in 2007.
He spiralled further into depression and alcohol abuse as his career and personal life crumbled.
Ricky Hatton has spoken to ITV Granada in his first TV interview following his knockout in the ninth round of his comeback fight against Vyacheslav Senchenko.
Ricky Hatton's boxing career came to an end in Manchester last night, but 'The Hitman' insisted he was "happy" to have made a comeback to the ring.
ITV News' Tom Barton reports:
Ricky Hatton said he believes he would have retired tonight even if he had managed a win.
He said: "I got in the best shape I possibly could but if I hadn't been hit with that body shot I would have just scraped over the line with a points win and I honestly think I would still be telling you all the same thing."
Ricky Hatton announced his retirement from boxing after his ninth-round knockout by Vyacheslav Senchenko in Manchester, insisting: "I needed one more fight to see if I had still got it - and I haven't."
An emotional Hatton said he would devote his future to his family and his promotional activities after coming to the conclusion to call it a day despite having initially suggested he may consider fighting on.
A badly bruised Hatton said: "I found out tonight it isn't there no more. I'm a straight-shooter and I tell the truth. I can look at myself in the mirror and tell myself I did my best, but there is always an excuse to find."
Ricky Hatton said he was not going to make any hasty decisions after he was beaten by a body shot.
He said: "I hurt him a few times, and I was winning.
"It was a good shot, I should have realised he was looking for that.
"I suppose that is what three-and-a-half years out of the ring does. I think I did alright - this guy only lost his unbeaten record in his last fight.
"I don't want to make any hasty decisions but I am really heartbroken. I am just gutted. I am not a failure, that is not how my career should end but I have to have a good think about it now."
Ricky Hatton cut a dejected figure in the ring after recovering from the crunching body shot which gave Vyacheslav Senchenko victory and stunned a previously raucous, 16,000-strong MEN Arena crowd into silence.
Hatton's trainer Bob Shannon admitted his boxer seemed to be distracted by the explosive atmosphere that the Manchester Arena provided.
"He wouldn't give me any eye contact when we were in the ring and the noise was that bad when I was trying to get him to work his jab," he said.
He added: "We're really, really disappointed. We knew the opponent was an excellent opponent. He was getting caught coming in. He lost his concentration probably after the fourth round and was getting caught."