Synchronize my old brave with my new brave without information about my previous sync

Hi, I need help.
Context: I have always used brave but have always ignored the Sync option. Until now that I had a problem with my computer, I know it exists. I had to emergency format it.
So far I am looking to import my previous Bookmarks and Passwords. But I don’t know how to do it (if it is possible). I have no information about the Brave Sync that I had before. Thanks for reading and I hope there is some solution.

I don’t know where to mark this, I would appreciate if you change the category