If you know your child was working hard but they forget to turn things would you be mad?

It would depend on 1 thing, have you any other issues like losing things or feeling easily distracted? I have A. D. D. So my executive function is almost non functioning. My parents simply don't believe it is real. I've shown them diagnosis and articles to describe what is wrong but they think I'm just lazy and defiant. I've yet to see anyone behave this way intentionally. If you don't have any issues then maybe making the effort or even asking them to help you come up with a system to turn stuff in might help them realize you can overcome this.