To wake up and smell the coffee
To realise the truth about your situation/to become aware of what’s really happening.
e.g. Covid-19 will never get under control until people wake up and smell the coffee - they must wash their hands, wear masks and socially distance.
The idiom wake up and smell the coffee is primarily an American expression and was in use in limited areas or as a colloquial use as early as the 1940s, but it was popularized in the 1960s and 1970s by Ann Landers. Ann Landers was an advice columnist for the Chicago Sun-Times whose writing was eventually syndicated throughout the United States. The phrase wake up and smell the coffee has continued to be a popular idiom.