My sons father has custody of him but filed a family law section 3044 against me (the victim) and manipulated the courts WHILE he was fighting dv case

My ex in 2014 was arrested for felony do after choking and biting my face drawing blood. In November of 2014 he filed a family law section 3044 restraining order against me while he was fighting his dv case claiming I vandalized his truck. When in fact I did not. But I did not know my rights and my public defender told me to take a foolish deal landing me on a 36 month FELONY probation when it was my FIRST criminal charge ever and my Ex has a lengthy criminal record including intercourse with a minor and number out felony burglary charges and drug charges. Family Court in Santa Cruz county NEVER looked into his records but did mine and the mediators failed to mention domestic violence and only went based on his word of slander on me and a corrupt family court judge Almquist awarded my Ex sole temporary custody of my then 2 year old son. He was booked on battery charges June 7 of 2015 and mediation filed their INACCURATE recommendations June 25, 2015 of temporary sole custody! Help!