Parent passed, left warehouse

I desperately need help, my mom recently passed and left a warehouse of paperwork and stuff. I have to get rid of it, I feel overwhelmed and really, really angry about this. I begged her for years to deal with this and she just… didn’t.

Has anyone dealt with this? Should I just bite the bullet and bring it all to her house or call a company and get rid of it all? It’s a lot of junk plus work paperwork that has sensitive info on it.

I’ve gotten maybe 5 feet into this mess. Any advice?