If you have a specific diagnosis, an awesome bullshit detector and hang out in the right circles, it is possible to make some sense of things and make informed choices that make a meaningful difference in your life.

It's only nigh useless if you are some "standard issue normal human with no alterations (aka health issues)" and want generic advice about what works for everyone all the time. Then it's pretty eye-roll worthy, for what I feel are kind of obvious reasons.