Self-isolation rules change
Within England there is no longer a need to self-isolate after close contact with someone who has COVID-19 if you are fully vaccinated or under the age of 18. If you have symptoms you should still isolate and take a PCR test.
Go to: https://www.gov.uk/coronavirus for full details of recent and upcoming changes. From there you can choose which country you live in within the UK for specific guidance for that locality.