The Lions have yet to win a game in the league this season but picked up their first points of the campaign with battling draws against Sheffield Wednesday and Brighton in their last two matches.
Lomas has brought in Leicester striker Martyn Waghorn on loan to boost his attack and he is set to make his debut against the Rams.
"We are heading in the right direction," Lomas said.
"Millwall fans aren't stupid, they can see when we play well and deserve something, but to get anywhere you have to take your chances.
"The lads are up for it and we are at home so we have to take the game to Derby, who are playing well on the road so it isn't going to be easy.
"We have to perform as well as we have been doing, but then take our chances."