Hmmm....
I doubt your parents are stockpileing riches
by allowing you living with them....
It's certainly not giving them peace and quiet.
I think your small check would help....
shelter...feed and clothe you.
You also have legal fines and need to be driven
places....if I remember correctly.
Disabled or not...you are an adult
and your parents are not legally responsible for you.
A bit of gratitude from you would be in order....IMO
I sure hope this will be your time to quit drinking
and stay on your meds....