Manchester United's goalless draw with Blackburn on Sunday has presented the Blues with the chance to set-up a four-point lead at the top of the table.
Chelsea have already squandered numerous chances to pull away from their rivals this season but this time Terry is determined they will not make the same mistakes again.
"We are playing well, the confidence is high," said Terry. "We have let the lead in the league slip once and we are determined not to let it slip again.
"It is three years since we won the Premier League and we are really determined to get it back to the Bridge.
"We have seen the team working hard in the last four or five weeks and that is the key.
"The quality has always been there and always will be in the top four or five teams in the Premier League but if we can work hard, win our tackles and do the basics very well then we should be ok. If we can win our games, there is nothing anybody else can do."