Danny Wilson reflected on Monday's 1-0 defeat at Oldham Athletic, feeling the game was decided by fine margins that could have been avoided.
Substitute Mike Jones scored the only goal of the game after 78 minutes with a crisp low drive - the result pulling the Spireites to within two points of the League One bottom four.
Wilson felt his side were close to getting something from Boundary Park: "It's a game that we should have got something out of, there's no doubt about it. It was a scruffy game, scrappy and nervy throughout, it was everything we expected quite honestly.
"There were a few chances, but then at the back-end of the game when we were chasing the game we had enough opportunities to get something. We've had great positions but lacked the quality at times in certain areas. That's what the difference was.
"It was a poor goal to give away, without the pressing, it's very difficult to condone how we defended that particular incident. The rest of the game was okay and we defended well, that was the difference in a one-niller."
The result gives a huge boost to Oldham - managed by former Spireites boss John Sheridan - and their hopes of a relegation escape, though Wilson is well aware that there is still a long way to go.
"We've got seven games left," he said. "Just because it's a defeat here doesn't mean anything's been decided. We've got to go into the next seven games with exactly the same confidence that we've had in other games.
"It's nervy and we know it's going to be nervy but it's not going to end four or five games before the end of the season, it's going to go to the wire."
With Port Vale visiting the Proact in his side's next crucial match on Saturday, Wilson says that for Chesterfield to maintain their control of the relegation situation they need to perform.
"The players know what there is to play for and the fans do as well, we've got everything to play for and our destiny's in our own hands at this stage.
"We don't need to worry about anyone else and we don't want to get into that situation, so next week we've got to get three points."