Schalkwyk, who was dumped by Santos last season, is at home in Klerksdorp training by himself with no teams in the First Division or the Premiership showing any interest in signing him.
The midfielder trained with SuperSport United last year but did nothing to impress coach Gavin Hunt.
Schalkwyk tells KickOff.com that he is losing his patience about playing football at the highest level again.
"I am at home and training on my own. I am still searching for a club but with no success.
"If I can’t find a team during the transfer window period then I am ready to throw in the towel and quit soccer,” he says.
"I have lined-up other projects which I want to be involved with and to help my community here in Klerksdorp, which I intend to start as-soon-as I quit football," Schalkwyk adds.