A group home might be a good alternative. However, when you say group home, are you referring to a place with medical staff (people who deal with those who suffer from a mental illness) or are you referring to a long term place to live? Even though your parents may not like it, you have to do what you think is best for you. They might be sad and/or upset, but you need to take care of yourself as well. If you are depressed and can't find a place, maybe you can temporarily admit yourself into inpatient care. They have round the clock therapists there to help you along with group discussions as well. Or if you don't want inpatient, you can do outpatient or even local support groups.