Coach Shane Flanagan has conceded his Sharks are suffering rugby league's version of the yips - the heebee jeebies - but says they remain genuine NRL premiership contenders.
Cronulla have won just one of their past six games and are not certain of a finals berth after stellar form for much of this season.
Despite some cursed luck Flanagan said he and his players only have themselves to blame and need to return to the grinding style of football that served them so well earlier in the year.
"We have been in that top four, definitely the top six all year, at the moment we just have the `heebee jeebies' a little bit, but if we just concentrate on the week-to-week we will be there (in the finals)," Flanagan said.
"Things haven't gone our way and you can toss up a few excuses in relation to injuries and a couple of (refereeing) decisions, but we only have ourselves to blame.
"We need to dig ourselves out of, if we beat Souths we'll move up. Then there are two games to go and who knows what can happen from there, our destiny is in our own hands."
Flanagan said the Sharks hadn't got carried away with the hype surrounding the success-starved side as they emerged as one of the form teams of the NRL midway through the season.
"That is external, it is not coming from the playing group, we know we're not there, we know we haven't done enough," Flanagan said.
"What we have been really good at all year is getting out of our end and getting to our kick and we have to get back to that.
"We have to get back to our best and what we know we can do well, grinding teams down, getting out of our end, kicking long and that's what we do really well."