If your statement consists of lies (and you appear to have admitted this fact) then you need to think very carefully about all what you have said. Your statement and any subsequent testimony you give to the court will naturally be rendered worthless, so do please think very carefully and be honest about it. Go to the police and tell them that your statement contains lies, because in all possibility you may end up on a charge of wasting police time or even perverting the course of justice, the latter of which carries a prison sentence.