Genealogy - find my jewish origins

Hello, i'm a genealogy enthusiast and have done a lot of research for my family. I descend from sephardi jews and have researched my family tree back to the 1500s, so i can assure you that i have quite a lot of experience in researching documents. The biggest concern here is the lack of information. Because this impacts directly in the amount of time needed to complete the research. I think the best way to move forward is by defining some milestones. Feel free to contact me, Best Regards.