The London club exorcised some of their demons from the past week by defeating Aston Villa away from home in the Premier League on Sunday.
Spurs put in a professional display and won the game 2-0, moving up the table into sixth position.
Mourinho, however, does not think one result takes away the pain of going out of the Europa League on Thursday.
Asked about his feelings post-game, he told reporters: "I'm very happy with the result, I'm very happy with the performance, I'm very happy with the attitude.
"I'm not happy with the feeling that if you did it tonight, why you didn't do it 48 hours ago? That match on Thursday will be a scar for a long time.
"It's not going to heal just because we won, but total credit to the players. They were a team. They fought together. They put in the game that honest, that dignity that football players should, should put in every match.
"I think the next challenge for this team is to have a performance like this one, not as a reaction to a bad or a couple of bad results, but to have this reaction, this attitude, this collective state of soul to have these every game.
"We are going to lose matches, we are going to play bad, but to have these human qualities in every match is the next challenge for the team."
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