The Blues managed to claim a 2-0 victory in London to book their place in the Champions League final.
After his side conjured 15 shots in the game, Mount told BT Sport: "I can't put into words. Great performance tonight.
"It was a tough, tough game. They're going to come and give it everything but we worked hard. We should've probably had about five! But the most important thing is we won tonight. We want to go into every game winning it.
"It was one nil but that really didn't matter because if they score, they were back in the game. To get that one late on, you can see by the celebrations, it was a massive goal for us and gave us breathing space in the last five minutes.
"We gave everything and we had that desire to win first half. We had a couple of opportunities where we won the ball and should've scored but we got the one late on and it's great.
"We haven't won nothing yet. Hopefully we've got two massive cup finals and hopefully we can win."