Adelaide have gone without victory in their last seven A-League games, with their most recent win coming in the first round of the campaign at home to Perth Glory.
United were on track for the three points after going in to half-time 2-0 up against Melbourne Heart on Sunday, but a second-half capitulation saw them walk away with just a point.
But they could have walked away with nothing if it was not for Carrusca’s free-kick in the 77th minute to level the scores.
“We gave it all,” said Carrusca. “We played well in the first half and we converted our chances which was missing in our last game. 
“In the second-half we tried to close it out but they made it 2-2, then 3-2 with a non-existent penalty and then we went forward to try and win the game but we only take away one point. 
“We have to keep working, this comes off with work and hopefully we can revert this as soon as possible.”
Following two stunning goals from Heart midfielder Andrea Migliorini to make it 2-2, Heart were awarded a controversial penalty by referee Strebre Delovski.
The United players were furious, with replays clearly showing the ball came of the chest of Tarek Elrich, rather than his arm.
“It was clear,” said Carrusca. “The ball hit him right in the chest. But you can’t do anything, it’s the referee’s word that matters. 
“Today he made a mistake, but other days he makes a mistake in our favour. There are no excuses, we just have to keep working to turn this around.”
Pressure has been mounting on Adelaide coach Josep Gombau following his side's faltering start to the season but Carrusca admits it’s up to the players to turn it around.
“It’s logical that people are upset that we are not getting the results we should be,” he said. “But we are doing everything we can to turn it around, we’re working very hard to move forward. 
“The coach is giving is everything we need to win but we’re not doing it. For him, for the group and for the people we want to turn this around already.”