Is it fair for parents to shout at you?

Not at the moment no, I am on benefits and will be seeing about a job soon, I have worked last year. 

have u a job ? which is paid

How do you mean?

are u earning money for the household ?

Well, my mum want's me to do stuff like clean and stuff the way she does it, But I tend to do stuff my own way as everyone else does. She says I'm lazy and don't help. I have ADD and i can be slow and for me, I only help someone if they ask for help. So far no, she shows no signs of autism, anger management yes

yes, sometimes,  what did u do wrong ? parents get angry because they are stressed just like you, ure mum is human too. 

what did u do wrong ?  is ur mum autistic ?  mine is ( un- diagnosed of course )

Believe me we have tried 

I think a lot depends on whether you know what sort of things upset your mum or not.

A good 'grown up' thing to try to do is talk calmly to her and apologise if you've accidentally upset her and to ask for clarity in what she expects from you.

If you have difficulty with her expectations, the door is open for you both to come to an agreement.

You also have to understand that, as a parent, they want the best for you but their life has other stress and pressure which may accidentally get vented at you.