How about working with animals (veterinary assistant, pet sitting)? Generally non-confrontational, easy job, and quite enjoyable. When I first moved here, I hooked up with a local in-home pet/house sitting company - the jobs aren't regular, but if you're not doing anything else it's a way to make a few dollars doing something enjoyable while searching for something with more hours/higher pay.

House-sitting/pet-sitting would give you a place of your own for a while and then you'd return to you parents in between jobs. Maybe a good idea for an interim measure, as Glinda says?