The 32-year-old says confidence has returned to Harry Redknapp's side after back-to-back victories against Southampton and Sunderland in the Rs' bid for Premier League survival
Victories over Southampton and Sunderland in recent weeks has closed the gap between the bottom-of-the-table side and their fellow relegation strugglers, as they now sit four points off 17th-placed Aston Villa.
Park says the improved atmosphere in the dressing room is evident after securing consecutive wins for the first time this season, but warned the squad not to get carried away with nine games still to play.
"There is four points difference now and we all know that the upcoming matches are really important," the Park told the club’s official website. "Our performances in the last two matches have been good, so we have a good chance of getting out of it.
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"I'm not putting too much emphasis on winning twice in a row. We're very satisfied that we are getting better and now we need to prepare for the next match. We need to keep winning and to get out of the relegation zone.
"The mood in the changing room after winning and losing is totally different. I can see more players laughing after winning a match, and it will have a positive effect in the next match."