There is a huge difference between looking forward to things and the constant craving of the next distraction which he describes.
There is a pleasure in anticipation, a pleasure in activity itself, and a pleasure in remembering it.
If you tend to build up and get disappointed, then maybe you do need to adjust your expectations. If you get sad because a good thing is ending, you may need to adjust your thinking.
I try to think of good experiences not as ending, but as being completed. I can continue to cherish them in my memory. I am not grieved because my children are growing up, I have held and nurtured them and that part is now complete.
C.S Lewis described it in his science fiction book Out of the Silent Planet: "A pleasure is full grown only when it is remembered. You are speaking, Hmán, as if pleasure were one thing and the memory another. It is all one thing." This was in reference to talking about wanting the same pleasure again and again.
So yes, there is value in living in the moment. But there is also value in treasuring the past and anticipating the future. In my experience.
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Your neurodiverse (Aspie) score: 149 of 200
Your neurotypical (non-autistic) score: 73 of 200
You are very likely neurodiverse (Aspie)