Also I’m pretty sure if you still have symptoms you have to stay isolated? Someone correct me if I’m wrong
According to the GOV website
Stay at home and self-isolate if you have any of the main symptoms of COVID-19 or if you have a positive LFD or PCR test result. Self-isolation will help protect your family, friends and the wider community by reducing the risk that you will pass the infection on to others.
Your self-isolation period starts immediately from when your symptoms started, or, if you do not have any symptoms, from when your positive LFD or PCR test was taken, whichever test was taken first. Your self-isolation period includes the day your symptoms started (or the day your test was taken if you do not have symptoms), and the next 10 full days. It may be possible to end your self-isolation earlier (see below).
This means that if, for example, your symptoms started at any time on the 15th of the month (or if you did not have symptoms but your first positive COVID-19 test was taken on the 15th), your self-isolation period ends at 23:59hrs on the 25th of the month.
You can return to your normal routine and stop self-isolating after 10 full days if your symptoms have gone, or if the only symptoms you have are a cough or anosmia, which can last for several weeks. If you still have a high temperature after 10 days or are otherwise unwell, stay at home and seek medical advice.
You may be able to end your self-isolation period before the end of the 10 full days. You can take an LFD test from 5 days after the day your symptoms started (or the day your test was taken if you did not have symptoms), and another LFD test on the following day. If both these test results are negative, and you do not have a high temperature, you may end your self-isolation after the second negative test result.
Report your LFD test results after taking each test.
You should not take an LFD test before the fifth day of your self-isolation period, and you should only end your self-isolation after you have had 2 negative LFD tests taken on consecutive days. You should stop testing after you have had 2 consecutive negative test results.