United finished second in the Premier League - their highest placing since the 2012-13 season - but will be without silverware this season if they fail to defeat final opponents Chelsea.
"I'm not going to change my analysis of the season because of one match," Mourinho said in a news conference on Friday.
"You can analyse the way you want to."
"I think the winning mentality doesn't have to do with records or history in finals," he added.
"I honestly think what we did in the past has nothing to do with tomorrow and the records don't matter. What matters is 11 against 11 and everybody trying to give their best."