Peterson's 12 Rules For Life, have you heard of this?

[EgoDeath]

I don't know if I would call Jungian philosophy outdated, it's still very relevant in analytical psychology. Granted I have a very rudimentary understanding of psychology.

Me neither but I also find it interesting.

I think Peterson's ideas on personal responsibility are a lot more straight-forward than most, "Stand up straight with your shoulders back... choose friends who want the best for you..."

Choosing friends who want the best for you is sound advice.  Good posture on the other hand does not deserve a bullet point as a guide to leading a good life and has no connection to taking responsibility so far as I can tell.

I'd have to disagree. Good posture is important in many ways. Not only is it just physically better for you, it is better for your state of mind according to a number of different studies. This isn't an idea Peterson came up with even, it's just out there. I mean I could pick any advice out of any book and say, this is bullshit, this isn't etc. It's all about what helps you. In general, if you don't feel like a piece of advice is helpful, you won't follow it, meaning you'll never reap the benefits. It's sort of like playing the lottery, you can't win if you don't play. The difference is, standing up straight doesn't cost you anything.

I've delved into self-improvement in the last few years so I'm willing to try anything that might help me. If a self-help book is bullshit, so what? I got one or two good things out of in and moved on. It's no skin off my back and only a few dollars out of my bank account. I tend to have a more positive attitude towards the self-help stuff. The only thing you have to be weary about is the authors who push you to subscribe to some monthly "get your life together" service or attend all kinds of monthly seminars and whatnot. That's where you get into the scam realm - i.e. the stuff I'm not interested in. But if I can read a book like 12 Rules and get one good thing out of it, okay, cool.