Speaking to BBC Radio, Rooney said: "I think the criticism is normal with the results we're going through.
"You have to feel that you can turn it around. I'm going to go back, watch the game back, evaluate the game and prepare for Bristol [City]. I understand [the fans' reaction], I've been there myself when I was young and I've been there as a fan when you want to see your team win.
"When you're losing games as we're losing them, that frustration is there so I get it and I don't take it personally."