Michael Chopra, who returns to Cardiff on loan from Sunderland, says the support of manager Dave Jones is the biggest factor in his decision to move.
And he thinks the switch will help him put his off-field problems in the past.
The 24-year-old striker, who joined Sunderland for £5m in 2007, was reported to have gone into rehab in August to tackle "personal issues".
"The (Cardiff) manager...is willing to help me even if I have to stay at his house," Chopra said on Friday.
The former Newcastle player was believed to have received treatment at the Sporting Chance Clinic in Hampshire, set up by former Arsenal and England defender Tony Adams who had struggled with alcoholism for much of his career.
"I have had my problems and I have put them all behind me," he told BBC Sport Wales.
"I went to London for a week to sort everything out and things are back on track now.
"But there's still a long way to go and hopefully I can continue to keep doing what I'm doing."
Chopra had been an immediate hit in south Wales after joining Cardiff on a free transfer from Newcastle United in time for the 2006/7 season.
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