Villa are in the bottom three and approaching a vital week in their battle to stay in the top flight with a home match to follow against bottom placed QPR next weekend.
But Lambert senses no fear in his squad about the battle to survive and admits he thrives on the pressure.
He said: "You'd like to think everyone has got fight in them to win a game and it's okay to be aggressive.
"But it will take a lot of courage. You need a lot of courage to take the ball as well. You need to go and play football and not get caught up with the occasions.
"In the last few performances, we certainly don't look like a team that is playing under pressure.
"We will try and play the game and not the occasion. If you get caught up in the occasion it can certainly hurt you - but we are not lacking in confidence or any courage to compete with teams.
"I do believe we will be fine if keep playing the way we are."