Victory over Wolves has United in second place on the Premier League table, to points behind leaders Liverpool.
United's late winner brought back memories of dramatic wins of yesteryear in title races, many of which De Gea has been a part of.
“You have to fight until the end, we have to keep on going until the end, you keep believing and keep trying we can score winning goals like today," he said.
But De Gea is refusing to get carried away with talk of the title in 2021.
“We need to be calm, there's still a lot of games to play, we have many games with the cups as well, be focused on not looking too far forward, looking at the next game," he said.