Aside from disability, there really isn't a government program that would provide her with money to live on. There's food stamps and medicaid, but that's not going to cover her rent, car insurance, gas, etc. I don't know what kind of section 8/HUD housing is available in her area, but in every area, the wait list is years-long. Cash assistance is typically only available to families/parents/guardians with dependent children. So, basically, if she qualified for anything, it would be less than 200 a month in food stamps and medicaid.
I don't think disability is an option for amber. At least not immediately. She doesn't have an actual medical history because she doctor-hops, or goes to urgent care or emergency rooms. She'd need to have a doctor on record in order to file, and the oncologist is not going to cut it since she's already had a hysterectomy and presumably no longer has cancer. Also, a doctor can't just agree she's fat, they need to specify that she's unable to hold a job in any circumstances, and why. I'm assuming that there are protocols and accessories that would mitigate (her self proclaimed) danger from sitting at a call center. I doubt that she can use the "muh mentuls" angle, either. She'd need a history of psychiatric treatment and a doctor to fill out the paperwork. No doctor is going to do that on the first few visits. I've heard it can take years and several hearings to get disability, outside of the "compassionate claim" reasons (like ALS, dementia or terminal cancer). So, basically, quitting youtube and getting government tugboats wouldn't be an option for her.