That’s what this bit is for!
Sure, it helps to dampen your excitement before any event whose outcome you don’t control, like a presentation, job interview, or publishing an article, but if you demand so little of life that you don’t even attempt any of these, you’ll soon walk around with a perma-long face. Most of us aren’t saints, so wanting literally nothing isn’t a practical everyday solution.
I agree that we can’t and shouldn’t want nothing. I just think it’s more important to find you baseline of not being miserable first. Once you’ve made sure of that and your “normal life” makes you content, you can use that as a springboard to shoot for bigger things from!
Does that make sense?