Ralph Waldo Emerson said, "What lies behind us and what lies before us are small tiny matters compared to what lies within us."
What's in you? Do you know? Whether you know it or not, you are being defined by it. The key to being more effective is to discover and maximize who you really are on the inside. Within you is your true purpose for existing; your underlining reason for what you do and say. Your internal development is a subtle process being feed daily by your five senses: what you hear, see, touch, taste, and smell. Your experiences connect your outside world to what's within you. The more you hang around positiveness, goodness, rightness and the like the more you might work towards being being positive, right, etc. It's the same for negativity, violence, hatred, resentment and other bad things. Your inner-self attaches to what you expose it to.
Make the choice to govern what is being put on the inside. Work today to develop your inner person to be wholesome and productive. Build it! Make it your first priority! Allow each moment to be inspired by the past and driven by the future of what you desire to be. Today is the only day you have to fulfill your ultimate purpose. Don't lose it!