Widow age67 homeless

Dear Sir/madam

Hi, I am A Christian widow senior citizen woman 66year. Earning by husband pension of 1.44L yearly. having 2 children Son and a daughter.
This is ancestral property in my husband name.

My Husband died 2015 after writing WILL That (all rights on all belonging goes to my Wife only) I have got the certified copy of my husband WILL from registrar office) as my son denied that there is no WILL.
After my son marriage he started abusing psychologically & monetarily to me for not transferring the property into his name. Later he sent me to ashrama forcibly along with police and hospital help, intension to kill me as i was being given multiple medicine which was spoiling my life conditions.snatched house key from me at hospital. And grabbed all original property document, REGISTERED WILL of my husband, money, Gold, household items, Pension doc, ATM, furniture everything from house.

I told my daughter and she saved me after fighting with him. even after my return I was continuing my conversation with my Son and stayed as well with his wife and children. During stay I again noticed the same, asking for property division, and a small share to my daughter. Multiple mental torture and problem restarted. This time I decided to stay with my daughter only.

I demanded everything what he has taken He denied and filed a case im civil court and took interim stay order on property im aug 21

I went to Police and filled a complaint online as they were denying physical. during interrogation, Police were supporting my Son, as he denied and says I do not have WILL, he never saw that, and father was not in position to make any Will, Which is completely lie. He also shown me during my stay with him.
I repeatedly asked police to file FIR of theft and help to retrieve the document, also Spoke to DSP, He mention we need court order to file FIR in this case.
PI denied and forced me to sign on his statement, that I am agreeing what son mentioned. I did not Sign.

I would like your expert suggestion considering my age 66 window, homeless unable to efford advocate fee, the kind of actions i should act.
He has plenty of money to buy the best lawyer. And influence people/authorities.

Here are my questions & what I want to accomplish.

1 I want my husband Original WILL and all property document from him, (Police is not supportive)

2 How can I terminate interim stay order from court? And built a home before i die.

Only my daughter is helping, even she has her own life.