Could people stop just reading one thing and then living their lives by it? Whether it's Myer's Briggs, or 10,000 hour rule, or some other self-help book with

Could people stop just reading one thing and then living their lives by it? Whether it's Myer's Briggs, or 10,000 hour rule, or some other self-help book with a reasonable premise -- I feel like most of the time it's just some reasonable premise taken to an extreme. Yes, if you want to be good at something, you'll have to practice a lot. Yes, practicing mindfully is better than just putting in hours. Yes, there are different kinds of people and you can (sometimes) broadly characterize them. I find it hard to respect people that read points like those, take them to the extreme, and then it becomes their sole mindset for 6/12 months until the next thing comes along.