First of all, many people are playing life on “hard mode,” as they fight chemical dependencies, depression, or other neurological illnesses. Those require more than a personal choice. They require professional treatment, sustainable management, and the joyful support of friends. The choice is often to recognize and accept those requirements, and to take action.
Secondly, while we can reprogram our lizard brains with some success, it’s not a panacea for all emotional reactions. We get annoyed, we anger, we feel helpless, we worry, we mourn. That’s as it should be.
Finally, it’s hard. We’re not only fighting evolution, we’re fighting our own learned habits. We are constantly tempted to enjoy the short-term “joy” of recreational complaining, of vengeance, of being the victim, of blaming others. (The Internet is built on those instant dopamine hits.) It’s the easy path with a quick reward, but one that sets us on a programmed path for long-term unhappiness.
Optimism is not the opposite of realism. We can expect the best while preparing for the worst. We can seek joy in hard work. We can look for happiness in the face of suffering.
Finding joy can be hard. If it were easy, it wouldn’t be worth it.