Shelley Kerr's side were held to a second successive goalless draw on Sunday by Bristol Academy, leaving them three points behind leaders Liverpool with two games to play.
But Scott is adamant the race isn't over and says the team need to rediscover their clinical edge in front of goal.
"We've got to pick ourselves up and the Birmingham game is a must-win now," Scott told Arsenal.com.
"We need to finish as high as we can in the league even though it's in Liverpool's hands.
"It's been a competitive season and I think what people have failed to recognise is other teams have strengthened and we've been in a transition phase as well."
Sunday's clean sheet was the Gunners' seventh since returning from the summer break and Scott is happy with the way the back four have been performing.
"To keep clean sheets is always pleasing but we want to win games,” she said.
“When we are playing teams higher up in the league they're going to make it difficult, so the emphasis is on us to be more creative and that's where we've struggled in the last two games."Copyright 2014 The Arsenal Football Club plc. Permission to use quotations from this article is granted subject to appropriate credit being given to www.arsenal.com as the source 9 Sep 2013