I know all of us are reading this forum to better our lives. You might be here to do that financially, but don't limit your thought process to money. Success principles should be used in every part of your life. Being healthy, bettering time with your family, and just living a great life are things that should be considered as well.
One quick principle that has helped me since learning it and actually taking heed is to continually think about the potential consequence of every action, choice, and behavior I do.
There is one thing that you can never get back and that is time. Since this time is going to go by no matter what and you can't get it back no matter what you do (unless you discovered time travel...), you have to make the best of it.
Every action you take in your business and personal life should be thoroughly thought through. Think about what the long term result will be for each action you perform everyday. This is going to help you find out what your priorities should be. After knowing what these priorities actually are, you will be able to focus on the things that are going to have an actual effect on you in the long run.
Remember, you are trying to make your life better for a continual period. As I've found, there will be never enough time to complete everything that you need to do. When focusing on the things that will actually make a difference, you can make real progress.
Just a quick thought.