Thank you for your enquiry.
There are different levels of protection against expulsion from the UK because of your personal conduct (public interest expulsion). You overstayed your visa 5 years ago and you have given a false NI number to work in the UK, which is a criminal offence. These personal conduct will be taken into account in deciding your EEA application.
If you require help filling your form, you will need to seek independent legal advice to take you through it.