dear saint, let lips do what hands do

My mother is 77 years old, she struggles with things "normal" for her age: high blood pressure, cholesterol, trigliceridi, anxiety, sleeping issues, back hernia, allergies and eye problems. I deal with chronic back/leg/feet pain and migraines (also chronic dermatitis, severe anxiety, depression, ocd, possible borderline, and vitamin deficiency to which I need supplements). That being said, we take 10 + meds a day:

Captopril, Losartana, Hidroclorotiazida, Puran t4, Sivastantina, Melatonina, Clonazepam, Duloxetina, eye drops, allergy creams, vitamins (omega 3, vitamin D, b12 and iron), powder replacements + diapers and common painkillers

Benefits + what I make with odd jobs leaves us with more or less $700 monthly, where $350 alone goes to rent, and we can't pay everything else (utensils, medicine, groceries) with only the remaining $400. We end up prioritizing house bills to keep a roof over our heads, but that means food and other necessities are tight. Working is hard when I deal with daily pain and need to take care of mom.