What does "feeling like your life is over" mean and why is it not in any dictionary online?

Read also:

• NASA’s Hurricane Science, Tech, Data Help American Communities - NASA Science (.gov)
• Never Too Late to Start Eating the MIND Diet That May Prevent Dementia: New Study of 90,000 Over Decades - Good News Network
• The 6 Best High-Protein Snacks to Buy at Aldi, Recommended by a Dietitian - EatingWell
• Why is Prince Harry being fired by BetterUp CEO Alexi Robichaux, and what role did Marc Benioff’s decision to pull sponsorship play in this?
• How reliable is U.S. economic data? It’s a growing risk for investors awaiting the next Fed rate cut. - MarketWatch
• Liquid Glass is more than skin deep on macOS Tahoe - AppleInsider
• We finally may be able to rid the world of mosquitoes. But should we? - The Washington Post
• If white people had been slaves, would WLM be a thing right now?
• Did you use the internet during the DOS era? Can you describe your experience? How were images displayed on the black screen when everything was just text-based commands?
• Are greedy private sector landlords responsible for Britain's housing crisis?
• How high oil could go if Iran closes the Strait of Hormuz, according to Goldman Sachs and others - CNBC
• What is a good investment portfolio for someone starting in their 20s? 90% VT and 10% BND for a Roth IRA then 100% TDF for a 401k?
• Minecraft's "Vibrant Visuals" update finally has a release date - Eurogamer
• This moon in the solar system continues to surprise scientists with the discovery of alternating water forms on its surface. - Farmingdale Observer
• Did you know that by the end of the Biden/Harris regime, the United States' population will have increased by 7.46% in just 4 years? And historically, this type of mass immigration leads to a housing crisis and unaffordable housing for all?