Palace earned a first Premier League home win of 2026 after Evann Guessand's winner in the 90th minute at Selhurst Park.
"I think everybody who watched the game could see how nervous we were in the first-half," Glasner said. "We were making so many easy mistakes, but then a great moment with our 'keeper saving a penalty, which was very important.
"Then before the second-half we said 'let's keep a clean sheet', because we're able to score goals again. We also said 'let's keep it simple and play more in-behind' (the Wolves defence).
"Then we had a very good impact off the bench with Evann (Guessand) deciding the game.
"The red card helped us, so today many things were very positive. The fans were pushing us to the end to get this win and that was big. It’s a massive win.
"We're all very happy today. It's a big relief for all of us."