Dowry Harrasement

HI All, My Husband is living in USA from last 5 years illegally.He left me and my two children here in Hyderabad and not sending any money to me or my children and not taking us to USA.And my Mother in law and her brother started abusing me and threatening me to vacate the apartment which is owned by my husband and his brother.And there was manhandling from my Brother-In-Law who works in India as GOVT employee.And when i asked my husband about my children situation and maintenance he started abusing me and threatening me with lies and claims that i have affair with other men and he wont return to India and won't take care of children.I filed Case on following section 498A,506 IPC,3,4 DPA, two months ago.But police are saying they cannot do anything ,and we cannot do anything or bring your husband. And in case i included my brother-in-law in case FIR, but police seems to be not caring about him either.What are my. options here?Do I have any case here?How can I take care of my children.?Sometimes I think Suicide is the only the option.