The Three Lions had a tough 1-1 draw against Denmark in the group stages on Thursday.
Eze, who came off the bench to little effect, believes that fans and players must remain calm, as they are still on course for the knockout stages.
“I’d say we’re staying calm, we know the potential we’ve got,” said Crystal Palace star Eze post-game to reporters.
“We’re building, we’re getting towards the level that we know we can play at. Ultimately, we’ve got four points and there’s more to improve. No stress, we’re not panicking.
“Tournament football is a rollercoaster. This is my first one but that’s what (the other players are) all saying. As long as you stay calm and positive, you’ll be fine.”
