I love that saying, because it’s exactly right. That said,
The same routine and location every. single. day. can become mind-numbing. Perhaps a break from heat is what you need. Or maybe a bigger change? I’ve no idea what your schedule and finances are like, but a day trip, overnighter, weekend getaway, or longer vacation could all be beneficial. I’m finding my town absolutely devoid of anything interesting, but money’s too tight for me right now to do anything about it 
The hope remains, though!
No kidding. The older we get, the faster time goes. However, I also heard about a physicist who said space-time itself is conically shaped, like one of those cylinders for donated change. The longer time goes, the faster it moves, and there’s a definite end point. For the last few years, nearly everyone I’ve talked to is shocked at how fast the months and years are moving.
That said, it sounds like you need a good changed whether it be worry-free air conditioning or a little vacay from the everyday.