The best way to avoid criminal charges for recanting a previous statement is to claim that you believed your allegations at the time, but upon reflection you realized you were mistaken. For example, perhaps the defendant never meant to touch you and what happened was a blameless accident, but at the time you wrongly presumed the defendant acted on purpose. Or perhaps you were intoxicated or suffering from a mental health episode when you made the police report, and it caused you to misremember and say untrue things.