grief over my mother is killing my empathy and i need advice

my mom is dealing with early stage dementia in a few states over from me and i have no contact with her at all.

last i know is that she was admitted to a psychiatric facility and i'm exceedingly worried that she's going to end up in the streets or jail. i can't help her because she's in another state. i'm in college, don't know how to drive and i don't make enough money to own or buy a car. she has no family who can help her, most of her side died from addiction, old age, or suicide.

i've been really angry over this as of recent and it's no-one's fault, but that anger builds up to the point where it comes out towards random people online and in-person. i get really annoyed and lose all empathy towards people at certain points of the day. it's mostly really deep and unyielding, towards all the systems that failed to help her when she tried to get help. i've been crying to dolly parton recently. longstanding grief and systemic injustice wounds suck, and i don't know how to deal with it very well, and i'm concerned about it affecting my relationships and friendships.