Probably far too late for any use but
Things you can try to show you are organised. Think of examples of when you need to be organised. Mention writing things down in a diary (get one!), setting reminders on your phone etc. Its all down to how you can show them you are trying to be more organised. Think of something (say a Dr’s appointment) and say how you would ensure you wouldnt forget about it (again, calendar, diary, post it notes on pc etc) this shows them how you are trying