DANNY SHITTU is determined to rediscover his best form after being reunited with ex-boss Ian Holloway.
Shittu feels he has "let himself down" after struggling to reproduce his performance levels of last season.
But the defensive powerhouse hopes the motivational influence of Holloway, who managed him at QPR, will help him improve.
"When it comes to managers, Ian is one of the best I've played for," Shittu said.
"He inspired me and pushed me to be the player that I am today. He taught me a lot about things off the pitch as well, so he's been a very influential person in my life."
He added: "Compared to last season, which is only a few months ago, I have not been 100 percent happy with my form.
"Getting to the FA Cup semi-final and the way I was playing gave me a lot of confidence, but this year we've let in lot of goals – when I have been playing and when I haven't.
"Letting in one goal is bad enough for a defender's confidence, but we've had some heavy defeats and it's hard to stay positive. I'm working to improve my performances in training.
"I know I can play better than this – like I said, last season was only a few months ago, so I've got to make sure I'm fit and confident on a matchday to show what I can do.
"I have done it before and I'm comfortable playing my game in front of the Millwall fans, home and away, so I have to stay focused."
Shittu admits his storming displays last season increased the weight of expectation on his shoulders.
"Fans and managers assume you will keep it going," he added.
"I feel like I've let myself down and that just makes me want to work harder in training to get back to the levels that I know I can produce."