"Football's football, it can change very quickly. I know that, I've experienced that many times," he told the club's official website.
"One moment you can be on a high, the next you can be low. It's a cliché, but we're keeping our feet on the ground, taking one game at a time.
"Consistency is key in any sport and it's no different here. We're putting a run together, we need to keep momentum going.
"We're looking forward to PSG on Tuesday. It's a tough period but these are the games you want to play in, the games you want to be available for."