It's amazing how far you will get by just staying with something long enough. Most people give up too early.
Understand that a problem is only a problem if you choose to view it as a problem (vs. an opportunity).
Devote yourself to learning something new about your field of mastery every day.
Excellence in one area is the beginning of excellence in every area.
If you're not uncomfortable on a daily basis, you're not making much progress.
To double your net worth, double your self-worth. Because you will never exceed the height of your self-image.