Converted and found out my mom may be Jewish. What do I do now?

Hi everyone! This is my first post on Reddit. I studied for 5 years and took a year class with an orthodox Rabbi, and then went to a conservative mikveh. After my conversion, I was looking into my direct maternal line. I found my mother’s family members from the 1700s and 1800s listed on JewishGen. Now after studying more and traveling in Israel, I want to be orthodox. Do I need to convert again? I’m having trouble finding documentation of my mom’s ancestors. Thank you!