Something vaguely similar happened to me: I suffered from a very strong cronic IBS-C for 20 years, since my University time. Around January 2022, I found a real cure for this 20 year long ailment (a very specific probiotic strain). I spent a couple of weeks really living amazingly, as I haven't lived in 20 years.
Then, on February I got the Astra Zeneca booster COVID vaccine, and as a result, I got long COVID symptoms and a stroke (Transient ischemic attack), and now I'm on aspirin for the rest of my life, and feeling like shit.
Aaah the universe has a nasty sense of humor indeed.
The tragic phase is a result of not living up to the unrealistic expectations one has, and the comedic phase is a result of dealing with those tragic emotions.
Basing judgment on the source of an idea isn't a perfect tool for navigating life. If someone is telling you lots of true things but in a way to compromise you, or to sell you something, or to get you to join a cult, then who that person is provides valuable context.
If you want a system, Peterson has a ready-made and inoffensive set of rules to play off of. It has a built in technique to improve on the rules that doesn't compromise your ability to think about new material (whereas scientology or other religious systems cripple you deliberately.) Identifying a collection of true things is the point, and then looking for good faith operators willing to share their model of successful behavior.
Robbins is a typical self help guy, and the value is there, but to me it's been most useful as a baseline against which to measure other systems. Robbins represents the line of hucksterism for me, where if you're playing with those ideas and presentation techniques you might not be legitimate. I think he's mostly just over that line on the side of authentic, but he often falls short.
Robbins is a sex predator.
Not role models, not teachers.
Poison the milk, poison the ghee.
But what his area? If it's living a successful, balanced life like himself, then his person problems are relevant to his self-help franchise.
Ah, the sudden school vs the gradual school. The debate lingers (see siblings).