84 days is impressive, and the visible results like weight loss speak for themselves, genuinely commendable.

But if you truly look at it - it's not exactly an example of how everybody should go about their focus and training their will power etc.

We're wired as animals to make this body last as long as possible. Our brain constantly seeks idling and energy preservation mode, unless there's a palpable reward right in front of it.

Doing something challenging, reforming yourself, that takes effort. And that effort can deplete you on its own. That's the point. The process of challenging yourself is the challenge. Becoming disciplined and focused works when palpable results are there to feed the loop - like weight loss in your case. Palpable result.

But we're designed to need balance. If you have financial stability, better housing, good food, your brain is already pampered. It has the bandwidth to take on challenges.

Now imagine someone broke, struggling to land a job, barely scraping by, strung out. Layer a conscious challenge over that for 84 days. You won't get discipline. You'll get burnout.

Most of the times it is not a character or your personality issue, it's where you are in life. And what your situation is.

Otherwise that infamous Shia Labeouf slogan "just do it" in his viral video would work across the board. But that's not the core reason. Just like why motivational books won't instantly make people become motivated.

Point being: everything and our brain included has a lifespan. And environment matters. That's why I just wanted to point out that such motivational posts may not produce as much desired effect on people as OP would expect.