The Royals snatched a 2-1 victory over Everton at the Madejski Stadium today after going a goal down in the first half.
"We showed too much respect towards Everton in the first half and I just told the players at half-time to raise the tempo of our game," BBC Sport quotes McDermott as saying.
"I've not been listening to the doubters or reading about the doubters in the newspapers. But I will read the papers tomorrow because we have won."
The former Championship side sit one place above the relegation zone in the Premier League table.