I need to know my Kuladevi / Kuladevta

Hello. We have lost track of our kul parampara. My grandfather, grandmother and elders all passed away. My father had passed away when I was a toddler. All I know is we are Gauda Brahmins of Bharadwaj Gotra. The shasan and nikas that is mentioned - Chulhet Pradhan - is not traceable for me anymore. My family history is that Gauda Brahmins are from the Gauda desh of Bengal. Somehow my ancestors managed to be a part of Nana Saheb and Tantia Tope’s army during 1857 revolt. When they fled from central India, they came to Rajasthan. They were not given protection by the weak Rajasthan kings but my ancestors were. I think we lost our kul parampara from that time! All my generation and the next are suffering something or the other. All my cousins and their kids are suffering physically or mentally. I believe placating the Kuldevi or Kuldevtaa would help all of us. What is the way to find these details.