The difference between medicine in poison is the dose ("the dose makes the poison.") Good ideas taken to extreme are often Very Bad, but sometimes a little bit of the idea is exactly what you need.

If you have social anxiety, talking to people through discomfort, or initially treating interactions as a game can help take the pressure off. Treating people as NPCs is unhealthy. Routine exercise is good. Becoming obsessed with how your body looks, living in the gym, taking steroids is bad. A sense of humility, purpose, and devotion in life is generally good. Religious fanaticism is bad. Confidence, which often involves a touch of self-deception, generally is good. Unchecked arrogance is bad.

If I tell you to go for a run or do some push-ups, there's a risk that you'll become totally obsessed with exercise. But going for that run will also help. You need a moderate amount of my advice, not an extreme amount.

This piece resonated with me. When you're stuck in a routine you dislike, being aware that your brain is optimized to stay in its current state (according to the cited research) is good. Going bananas and being "unmoored and open to anything", living every day without any sense of habit or purpose is bad. The dose makes the poison.