Robin van Persie believes he should have scored more goals for Manchester United this season, despite currently being the Premier League's leading goalscorer.
Van Persie, 29, has scored 18 league goals this season - 22 in total since moving to Old Trafford from Arsenal last summer - and has been a driving force in United's title challenge.
But despite his rich run of form - which included 10 goals in 10 matches before Sunday's draw with Tottenham - the Dutchman insists he must be more clinical for the league leaders.
"It should have been 10 games, 14 or 15 goals," he said. "At least four or five I shouldn't have missed. It's not going really well. It is going well but if you start to believe it's going well, you're going down.
"If I look at all those games, I should have done better in most of them because I had more chances than just one chance and one goal."
Van Persie is yet to return to the Emirates since departing Arsenal and although his move caused uproar among the Gunners' faithful, the forward says it was the right decision.
"Arsenal is a great club and I always had a really good feeling, but after eight years sometimes you feel that you need a new challenge," he said. "I know why I went and I'm sure it's for good reasons.
"If you look at the last couple of months, it explains it all. I'm seeing things again that I didn't see for a long time. When I first came to Arsenal years ago [in 2004], I saw things from [Dennis] Bergkamp and Thierry Henry I'd never seen in my life before. Now I'm seeing those things again and that makes me really happy.
"It's like a kid in a sweet shop. It's like: 'Yes, this is nice, this is good, this is having fun, this is enjoying yourself.' All these little things added together make a big difference. It makes me feel that I'm surrounded by champions."
Van Persie had no problems breaking into Sir Alex Ferguson's first team and he admits the culture at United has allowed him to relax and focus on playing good football.
"On and off the pitch, everyone has been helpful. I have settled in well," he said. "The main thing is that from day one everyone gave me the feeling that I was welcome and that they were happy for me to be here. I was happy to be here, it was a new challenge for me and I was ready for that challenge. I am having fun."
Injuries affected his Arsenal career at times, but van Persie played his 71st consecutive Premier League game on Sunday and he believes regular match time has improved his consistency on the field.
"If you go back to my injuries, people just look at stats and for a couple of years those stats weren't great," he said. "But most of those injuries were impact injuries, they can happen. It was mostly unlucky.
"I don't think it was me to blame, or the club medical staff to blame. I was just unlucky."