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

Read also:

• Why does my dog keep licking at her privates now? She is 7 years old and has barely started licking there. The vet said she’s fine but she keeps doing that.
• Padilla says FBI agent, Guard member escorted him to Noem's briefing before removal - Axios
• What exactly is the difference between a surge protector and a fuse? Can a fuse protect the electronic devices from lightning instead of surge protector?
• I broke up with my boyfriend because he wasn’t transparent about his past, it hurts me and he doesn’t care. I told him in the beginning of our relationship that it was a deal breaker for me what do I do?
• Does any unofficial Roman Catholic card exist in the world to play? In Italy, Rome & the Vatican City, can practising Catholics get any discounts as a tourist, & / or privileged admission to certain sights, with different rules for non Catholics?
• Why do some people never get to on a date even though they wanted to? Are they just too ugly and weird for everybody?
• What can be done to combat group stalking and harassment by an organized gang or society, particularly when they use universal sound weapons?
• What song are you listening to right now? What does it mean to you?
• What are the pros and cons of living in Male, Maldives?
• What does it mean when someone says "I'm feeling frisky"?
• If an abortion doesn’t affect you, why do people make it a big deal?
• Did you become a cuckold for your wife?
• If sea levels were rising, wouldn't the acreage of coastal salt marshes increase? Are they?
• Can you explain the difference between God and atma according to the Bhagavad-Gita?
• Why do I smell bad even though I have good hygiene?