How can I convince my mother to stop being a hoarder?

My (20M) mother (36F) is one of those obsessed hoarders, and though I do my best to keep clean, she doesn't help me and doesn't want me to throw away anything.
We live in 3 rooms and every room is filled with junk, trash and filth.
I work and she doesn't, and every time I try to ask her ti clean a bit or find a job she gets angry, cries or threatens to kill herself.
Our water heater broke down and although I gave her the money for a new one, she somehow lost them and claimed I never gave her anything.
I don't know what else to do, I want to leave or help her but every time she gets angry or cries.
Updates
+1 y
I've discovered a literal swarm of bugs and maggots in the drawer where we keep the dry biscuits and breads, and some under the fridge too (we use It for storage as it doesn't work, for now we keep cold stuff on the balcony outside).
I can't take it anymore, I want to get the fuck out of here
How can I convince my mother to stop being a hoarder?
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