Villa opened the season with a 3-1 victory at Arsenal before impressing in a 2-1 defeat at Stamford Bridge on Wednesday night.
And ahead of Saturday evening's Premier League home game with Liverpool, Lambert says his young team are relishing the chance to continue their promising start.
"The games take it out of you physically. But you just sense that they want to go again because of how they are playing," said the Scot.
"They have that feeling of 'I want to go again'. That's the beauty of it.
"The lads know they were outdone by certain aspects of the Chelsea game. I thought we were excellent. Some of the football was terrific.
"We come away from two difficult games with our confidence really vibrant - and so it should be because of the way we played.
"The youthfulness is going a long way as well. I am sure they will come in this afternoon and be wanting to go again.
"There will be one or two bruises. Friday will be light for them and then we go again on Saturday."