Personally I would try to ignore the daily deaths as reported. The reality comes with the weekly ONS data, which is sweeping up all deaths for everything, including care home and community deaths, and picking out the deaths from Covid, or where Covid was present, which are two different things, and comparing them with the rolling average for the last 5 years.
I think the most reliable indicator, bearing in mind our lack of testing, is the actual hospital admissions, and numbers in ICU. These are being reported, but don't make the headlines. A few doctors on TV and I think in a couple of news conferences have indicated that those figures are falling in London, so that may be a positive indicator if it continues.