The first half will lose power as it moves. Driving too hard will limit your actions due to physical discomfort.
Getting involved in the troubles around you often makes your hard work go to waste.
Troublesome problems arise one after another. Trying to solve them by force will harm your health.
I am often exhausted by doing work that doesn't pay off, and it becomes even more of a quagmire when approached with a profit-and-loss mindset.