As of December 20th, Lewisham is under Tier 4 coronavirus restrictions. This means that residents must stay at home, apart from in a limited number of circumstances.
Full Government guidance is available here: https://gov.uk/guidance/tier-4-stay-at-home
One important thing to note is that you can still leave the house to provide care for vulnerable people. Please do reach out to anyone you think might need help.
I am in the process of updating the information about local and national support organisations on my website: https://www.vickyfoxcroft.org.uk/contact/