I don't know what the uk has to offer, but do they have disability like they do here in the states? qualifying for that would give you to income to move out on your own. getting away from your parents seems to be the only solution as they are not sympathetic to your needs. it does not sound as if you are well enough to get a job to support yourself although that would be ideal. you would feel better about yourself making you feel better overall if you were not living under their roof. take care.