The Blues boss conceded it will be "very difficult" to qualify for Europe's top club competition after falling eight points behind Tottenham.
Antonio Conte blamed a loss of confidence for Chelsea's 3-1 defeat to Tottenham but assured they will continue to fight for a place in the Champions League.
Chelsea are eight points behind Tottenham in the race for the top four after Spurs came from behind to claim a first win at Stamford Bridge since 1990.
Alvaro Morata pounced on an error from Hugo Lloris to give Chelsea the lead, only for a wondrous long-range strike from Christian Eriksen to level matters on the stroke of half-time.
"Our first half was really good. If the first half finished 2-0 I think it is more fair than to go 1-1," Conte told Sky Sports.
"In the second half I think we started well then we conceded the second goal, we lost the confidence.
"It was very difficult to come back, it's a pity because we knew we had the chance to try to reduce the gap with Tottenham.
"Now the situation is very difficult to take a place in Champions League for next season.
"I think in this season in many games we created many chances but we didn't score. I think last season we were more clinical. In this game I saw Tottenham do this, they exploited every chance they had.
"You have to try until the end to catch a place in Champions League, in this case Tottenham and Liverpool, you have to try until the end to get three points in every game and see what happens."
Source: Goal
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