Look into something like educational aides at schools or medical billing. Fibromyalgia sucks but being bored sucks too... having a job will distract you from your pain, and a sense of purpose.

Work a side hustle now to make enough cash for first & last months rent when you move out on your own.

The issue with generational welfare is your mom's a role model for being disabled, and getting disability is such a hassle, it's work to get it. Look outside this world, which you're doing.