Villa, who entertain West Ham on Sunday, are currently in 19th spot and have won only four league games this season.
Lambert has been encouraged by Villa's recent performances, including last weekend's 3-3 draw at Everton, but is aware of the need to start putting points on the board.
The Scot said: "Have I a points target in mind? I know how many games we need to win and that's the thing we have to go and do.
"If we keep doing the things we are doing, we will win more than we don't.
"I would say we need to win five or six games. It depends because you don't know what other teams are going to do, but I don't concern myself with other teams.
"You've got to focus on your own team. You've got no influence or control over other results."