Villas-Boas says he learned from his experience at Stamford Bridge last season.
He said: "I feel like a different manager and a different person.
"I think I've improved a lot as a manager. Every person learns from their mistakes and you try to improve on those mistakes.
"Your man-management, your preparation for the game and your training sessions, everything is experience."
Villas-Boas insists he is not motivated to finish above Chelsea by revenge. He said: "I don't see it that way but obviously it would be excellent because it would mean we have qualified for the Champions League.
"I think the fact that we achieve it as a club means much more to the fans."