HELP, Please, any way to recover info and collection from Kindle Oasis?

Hi, by mistake I reset my kindle oasis 9. It erased everything, all my collections, all my files, everything

Since I don't have a back up 'cause I can't get the collections into calibre I don't know what to do, I'm really desperate

This kindle is kind of my lifeline, my help and support with everything that is going in my life and family, please help me.

I know it might seem like I'm over reacting but I'm really starting to feel faint, I'm not prepared for this. please help