Gerard Greene believes a lack of mental fortitude has been costing him matches despite his win in the first round of the ManBetX Welsh Open.
The Belfast potter edged past World No.35 Liang Wenbo 4-2 under Cardiff's Motorpoint Arena lights, striking breaks of 75 and 53 to cap off an impressive start to the week.
And although the World No.108 has endured a disappointing season, he says he has pinpointed the reason behind his string of first-round losses.
"My form's been rubbish recently," he said. "I think it's a mental thing which is costing me - my concentration levels are shocking. I could be on an important black and have my mind on anything - I don't really know what goes on in my head and it is strange. It's just impossible to block it out - I try my best but my head always keeps thinking about other things.
"When I feel confident I'm capable of playing okay, but then I'll just go out and play like a wally, so I tend not to tell people I'm playing well because then I normally go and play badly.
"It was a bit scrappy out there but when I was in amongst the balls it felt alright, so hopefully I can keep going here this week.
"I'm not going to say I'm feeling good because I'll just go and play like a wally, but I feel alright and hopefully I can take my chances."
Elsewhere, Antrim's Jordan Brown also booked his place in the second round. He beat Alex Borg 4-1 after a final-frame break of 68 was enough to thwart the advances of the World No.125.
• Watch the Welsh Open live on Eurosport and Eurosport Player with analysis from Jimmy White and Neal Foulds