What can I do if court visitation orders aren't followed?

The court granted a visitation order allowing me to see my child for two hours on two days every weekend, but the mother has not complied with the order. I have already filed a contempt of court case, but it has not made any difference. Despite this, the judge continues to give them more chances, and they keep attending sessions. It has been nine months, and even a request for visitation under police protection was dismissed. I am confused about how to ensure that visitation is enforced. Should I file for custody under a Guardian and Wards Petition (GWP)? Also, the child, who is now six years old, is being influenced against me.