If you are an EEA national and you don’t hold British citizenship, you need to act in order to remain in the UK.
If you have been living in the UK for at least 5 years, you need to make an application for a settled status, which would give you the right to stay and live in the UK.
If you have been living in the UK for a shorter period than 5 years, you need to make an application for a pre-settled status, and once you collect 5 full years – you can then apply for a settled status.
Another option is applying for British citizenship.
In order to do so, you first need to obtain the document confirming your Permanent Residence after completing 5 lawful years in the UK as an EEA national exercising Treaty rights – as an employee, self-employed, student, self-sufficient person or a jobseeker.
You then need to wait for 1 year from the date of issuing the documents confirming your PR – so if the date on the documents is backdated to 05.05.2013, you have been free to apply for citizenship since 05.05.2014.