If you've been thinking about these types of questions, you might really enjoy www.PersonalDevelopmentInsights.com, the website of Carmen Wyld, a personal development coach, author, and speaker who also teaches a course called Personal Development--Ultimate SECRETS to an Amazing Life! on udemy.
Speaking of Carmen's udemy course, she is offering it at a significant discount if you use this coupon code. With the code, the course is only $15. It includes lots of valuable, insightful resources including video lectures and lots of downloadable content.
What are the benefits of personal development for all of us? As Carmen says, some people "don't bother" with such topics because they think that only people who are already rich and successful have a good life. But really, we can all have a better life if we look inside ourselves rather than focusing on other people and what we don't have.
As Carmen also says, another problem that many people run into is that they try to follow what seems to have worked for other people rather than gaining personal, individual insight and figuring out what might work for them. We're all unique, so there are unique solutions to the difficulties we face. There's not a one-size-fits-all solution to making improvements in your life; to use Carmen's phrase, we have to fine-tune what's in our "personal toolbox" so that it helps us reach what we have in mind for ourselves.
Another interesting aspect of Carmen's work is that she begins with self-examination and self-exploration, but she expands outward into how our personal choices help us create change in the world at large. She considers each of us to be a co-creator when it comes to affecting change in ways that have social, environmental, and cultural implications.
I've enjoyed checking out Carmen's website and her udemy classes, and I think she's got a lot of interesting content that she's sharing that could be a catalyst for positive change.