Procedure to file case of mental harassment & defamation by in laws

Hello I am married female I got married in may my husband Nd in-laws hv tortured me mentally and they made me to commit suicide in September but luckily I was saved wen I in hospital they were do humble to me and told me dey vl take care of me and vl be living happily so I didn't gv any statement to police I took Blane on me they told to go with my mom Nd they vl come Nd take me back but now it's been Jan five months hv passed they hv not took me and in return they hv defamed my character and even raising false allegations on me my in-laws Nd hubby hv called up whole community people and hv abused me and my family and even my parents upbringing is been questioned right now I am in a situation were money health reputation everything I hv lost I am not getting away to fight with dem because they r rich even they hv support of police and political people I am feeling so helpless and instead of again quiting my life I am not able to see other option plz guide me