Investing in yourself

I am reading "7 smart habits to building the weatlh of your dreams" by Lynnette Khalfani. I am very impressed by her suggestion : INVEST in yourself, which is equally important to any mothers.
"Investing in yourself will help you reap millions of dollars over a lifetime and it will also help you experience an abundantly satisfying personal and professional life." There are six primary ways you can invest in yourself and enhance your reputation:

S-Strive for perfect credit
I-Improve your education
M-Make it a lifelong endeavor to increase your knowledge training and skills
P-Put money in your own business before anyone else's
L-Learn to give back
E-Earn more by creating stability in your personal and professional life.

Have you consider this SIMPLE suggestion? I remember when I visited my former teacher at her home in Ohio. In her kitchen sink, she placed a big sign "SIMPLE life". I wonder whether she meant the same.
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