The Gunners are six points bheind leaders Chelsea, following their 2-0 win at home to Sunderland on Saturday.
“People tend to write us off,” said Walcott. “We stay in the background and do our own thing.
“We’re just six points behind Chelsea. It’s looking good.
“It was frustrating in the early stages of the season with results not going our way, but it’s coming together now.”
Walcott is desperat to stay injury-free for the rest of the season in order to fight for a place in Fabio Capello’s England World Cup squad.
“I’m starting to get there now, it’s just getting that final ball sorted,” added Walcott.
“I’m not looking too far towards the World Cup at all to be honest – I’m just concentrating on Arsenal with all the big games ahead of us because I’ve not really featured much for my club this season.
“I just need to stay fully fit and if I do hopefully I’ll have a chance of getting on the plane.”
