There are many mindset coaches and videos out there. Gurus who promise the holy land of productivity if you just get that meaty lump inside of you skull to think the right thoughts.
And I see the appeal, I really do. "I just need to watch one more video about the three steps that changed his life! Maybe I can apply this myself?". And maybe for a short amount of time the kind of thinking portrayed in this content really does help you. After all, believing you can do something has never hurt, right?
But what if you really can't do the thing you have said out to do?
What if you fail?
If the coach you are watching is any good, they will have healthy advice to deal with failure because there really is a lot one could do. For me it always helps to think of critique or shortcomings that have led to the feeling of failure as something non-personal, by imagining the work (assuming you failed in a work- related situation) was done by someone else and you are part of the commitee to judge this work. But if your coach is not, in fact, good, they might only ever argue by the measurement of mindset.
You either have the correct mindset, or you don't. And if you don't, then you haven't worked on your mindset enough! Because if you had, you would have succeeded. And in that way, mindset can be kind of like a (toxic) religion.

Either you succeed because of your belief, or you have not believed enough.
Either you succeed because of your mindset, or your mindset simply isn't right.

To top these allogations of, some mindset coaches are revered similar to the fake gospels of megachurches. They are almost being prayed to as the image of something better, someone who has already achieved what so many are praying for.

I do not believe we should place this much power in one person.
A healthy mindset is not only benificiary but also required for a good state of mental health, in that sense I kind of have to agree with these coaches, but I do also believe, that every situation is a reaction to some previous action, a sum of the parts that led up to this point in time. And believing this I could never place one single persons mind over all of the rest of the universe also affecting everything we do.

I believe we should stay humble,
mindset can only take us so far.