I would feel a lot better if my mom had a medical alarm system, or some way to signal for help if she was hurt or in trouble. Has anyone used one of these and what would you recommend?

My mom is a real hoarder. There’s stuff just everywhere in her house. Piles of stuff, you can’t even walk around in the rooms in her house. She gets pretty violently mad when I tell her she needs to get rid of some junk so she’ll have room for stuff she really needs. What should I do? Should I just go in and remove stuff for her own good?