My husband is clinically vulnerable so we wear masks in crowded places, look for airy venues with increased ventilation and always test if we have symptoms. A single lateral flow test from Boots is about £2 and presently 5 FFP2 masks cost £2,99 from there i.e. half price.
UKHSA still produce data on a regular basis and COVID levels are stable at present but as high as they were in the summer. Christina Pagel, Sheenagh Cruickshank and Bob Hawkins, all respected scientists and statisticians tweet regularly with understandable information. Elderly people still are admitted disproportionately to hospital and in very young babies infection has never improved. Regional differences in cases exist, the NE and West Midlands are higher at the moment. There's lots of advice and good practice available. Serial COVID is not a joke.