The Bees won just two of their first 10 League Two fixtures in the 2016-17 campaign and eventually finished 15th after flirting with the play-offs.
Campbell-Ryce, who recently signed a new deal to stay at The Hive for next season, said:
“At the start of the season the first five to 10 games are so important.
“They don’t decide your season but, if you get a few good results, it can give you so much confidence to move on from there.
“Obviously we were in touching distance of the play-offs and we faded, but hopefully next season we can have a really good surge. We genuinely believe we can mount a challenge.”
The experienced winger, who made his Football League debut on loan to Leyton Orient 15 years ago, went on to represent another 10 clubs before joining Barnet in 2016.
He immediately became a popular figure among the Bees faithful last season, racking up 32 appearances and finding the net just once.
“Every attacking player wants to score more goals!” admitted Campbell-Ryce, whose sole strike was a late equaliser in the Bees’ 2-2 draw at home to Crawley in March.
“But if I’m not scoring, I want to be one of main creators in the team and that’s something I managed to do throughout last season.”