Palace won 2-1 at Chelsea on Saturday for a fourth straight win, with Benteke netting what proved to be the winner. Chelsea's Premier League lead was cut to seven points.
A second successive win at Stamford Bridge - after a 33-year wait for the first - saw Sam Allardyce's men move to 31 points, further away from relegation danger.
Benteke told eagles.cpfc.co.uk: "You can see that the confidence of the team is high at the moment. We try just to put that on the pitch.
"We work hard for each other. It's four wins in a row, so we can be happy, but we have to keep going, because there's still a long way to go."
The Belgium striker's own esteem has risen, too, after scoring twice in Russia on international duty and scoring his first Premier League goal since January.
He added: "I think I can't deny it; as a striker as soon as you score you feel more free.
"You have more confidence in yourself, of what you're doing. I'm happy to help my team-mates get three points. We can be proud of ourselves. The work that we did was unbelievable and we had sometimes some luck, but I think we deserved to win this game."
Cesc Fabregas gave Chelsea a fifth-minute lead, but the excellent Wilfried Zaha equalised four minutes later and Benteke struck Palace's second after 11 minutes.
A resilient defensive display and numerous fine saves from goalkeeper Wayne Hennessey saw Palace end Chelsea's 13-game winning run.
Read the full article on eurosport.co.uk: Eagles on the up, says rejuvenated Benteke