Forest have won just three of their last 24 matches and the morale in camp has sunk because of their poor form.
It is something that Freedman is looking to change as quickly as possible and he says that it is the biggest task that awaits him in his initial time as boss.
"Confidence is low because of results, there's no doubt about that, and that needs to change quickly," he said.
"Many things can bring confidence back to a team. The message you put across or the way you put it across can help. It might be a change in personnel or systems. I'll find the way to do it."
Forest take on Brighton and Hove Albion this weekend and Freedman will be keen to get off to a good start at the Reds.
The sacking of Stuart Pearce has been greeted with widespread anger from their supporters and Freedman faces a tough task winning sections of the crowd over.
Forest have operated with a short-term policy for too long and the lack of stability has clearly damaged their chances of success.
Freedman will be hoping that he lasts longer than his recent predecessors, and he will realise the pressure is on him to achieve good results if he is to do so.