You know you're getting older when 'let's go out' turns into 'let's just stay in, order food and be in bed by 11.' And somehow it's the best plan every time.
At 18 you think you'll have everything figured out by 25. At 25 you realize nobody has a clue, everyone is just better at pretending, and the people who look the most sure are usually the most scared.
I used to think people who were always 'busy' were doing better than me. Now I think a lot of them are just avoiding sitting alone with their thoughts for even ten minutes.