I don't think class is a thing really, it's undefinable. But I'm going to suggest perhaps housing situation and income are the main defining factors?
I'm not sure I'm even working class, is there anything lower?
Income: <11K/year (benefits top ups)
Employment: Self-employed start up (top ups diminish once my business is a year old, I'm a sole trader and it's going well)
Employment history: Public sector admin
Education: Graduate (academic (not vocational))
Housing: Social home
Marriage: Single parent (divorced)
Parents: Misfits of middle class families, I was brought up on a council estate
Fill yours in and see what people say you are