Kitson joined Stoke City for £5million but has returned to the Championship side on loan until the end of the season.
“I compromised everything I had at this football club, which was a lot,” said Kitson.
“Now, looking back, and with that in mind, you have to put your hands up and say I made a mistake, nobody else.
“I made the decision, nobody forced me to go to Stoke.
“I went there thinking I could start a new challenge and do well for another less fashionable club and keep it in the Premier League. I was wrong and I put my hands up.
“You should never compromise your family’s happiness and that is what I did. That is unforgivable.”
