Tottenham are fourth in the league with 64 points and looking to secure a top-four finish to ensure Champions League football next season.
He said: "Sometimes after a great victory, as human beings, you can start thinking, 'If we beat Chelsea at Stamford Bridge, why not win the next games?' And you can drop a little bit in focus".
"It was so tough", he told Sky Sports at full-time.
"When we decide, it's not about personal feelings or emotions, it's about providing the team with the best tools to win", said the Spurs manager.
"It will be a big battle because they are playing for survival. But if they don't then fantastic too because we signed a contract to deliver that work".
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Most thought that signalled the end of his career at Tottenham and were waiting to see what the player would say.
Xherdan Shaqiri nearly secured Stoke a share of the spoils 10 minutes from time, but his free-kick came back off the crossbar and Spurs held on to the victory which leaves them only behind third-placed Liverpool on goal difference.
The Blues head into the game looking to return to winning ways after the disappointment of their 3-1 loss to Tottenham Hotspur at Stamford Bridge last weekend.
Despite the club's failure in Europe, the future remains bright for a team who are still capable of finishing as high as second position in the top flight, and confidence will be high after claiming a rare triumph away at Chelsea. Then he got the injury and players like Davinson [Sanchez] and [Jan] Vertonghen stepped up - and you have got to deserve to play.
"We are going to play for three points, the same that we did against Chelsea".
I think if what he (Levy) achieved is true, well done and I think it's deserved because he's working so hard for the club and he's been doing a fantastic job for 16, 17 years.