I imagine he was trying to keep up the livestyle of a £24k a week footballer long after he was one, such as driving a Ferrari when playing for Tamworth, and this has caused the problem.
As he said to some kids when driving off in his Ferrari after he got sent off at Tamworth: "You might afford one of these one day." Taxi for Mr Hendrie.
Despite his obvious foolishness, I hope he has plenty of support from family and friends. Going from one extreme to the other in just over a decade, expecially for a young male, could very well put him at risk.