The Magpies have won just one of their last eight National League North matches to fall to tenth in the table - their latest game ending in a 1-0 defeat at strugglers Gainsborough Trinity.
They are only three points off the top seven, however, ahead of Friday night’s trip to FC United of Manchester.
Putting the ball in the back of the net has been the main problem for Chorley. They’ve only scored 32 times in 28 games and only Curzon Ashton and North Ferriby United have netted fewer.
Jansen told the audioboom’s channel: “It’s really frustrating. We did everything but score at Gainsborough and that’s been the story of our season.
“It’s been a fault of ours throughout the year that we haven’t taken chances or we haven’t been decisive with the final pass. We’ve had chances but not taken them - that’s what counts and changes games.
“I’d be disappointed if we were playing poorly but we’re not. We just haven’t got what we deserved.
“Yes, we lost Terry Gornell and we didn’t really replace him once the season started. We have been looking but we can’t go and spend X amount of money - we need to look at the budget. We need to bide our time until the right player comes along that we can afford."
On their promotion aspirations, Jansen added: “We’re not out of this by any means. I want 30 points from the next 14 games and we’re more than capable of doing that.”
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