And the 27-year-old keeper agrees that United's league performance - in which they are 19 points behind rivals and title-winners Manchester City with one game left to play - has not been up to standard.
The Spaniard has been fantastic in goal for Manchester United this season making clear-cut saves and rising on several occasions to become the fifth defender for Manchester United's defense when the chips are down.
The Spanish No 1 has enjoyed another spectacular individual season but Jose Mourinho's team as a whole have come in for constant criticism this term.
Yet Mourinho refused to criticise his side despite another toothless attacking display as they sealed second place in the league with a 0-0 draw at West Ham.
De Gea scooped the Golden Glove award for the first time after recording his 18th clean sheet of the season in Thursday's goalless draw at West Ham.
In United's first game since former manager Alex Ferguson had to have emergency surgery for a brain haemorrhage, the visiting fans showed their support to the 76-year-old Scot with persistent chants of "We all love Alex Ferguson".
De Gea in a post-match interview said, "It feels good, it is my first Golden Glove award".
Amazingly, De Gea, who joined the Red Devils back in 2011, has never won the Golden Glove before.
'I am really happy for that. It is about clean sheets and they are on the team. "It is for everyone, it is a team award, not just for the goalkeeper".
"Of course I can understand that it's a team effort, this and that but we know what he has done".
De Gea continued: "It's always good to be able to help out the team, and to try and be at your highest level of form possible to be able to earn points for the team". "Obviously, we are all very happy for David and it is a great team achievement".