To create dynamic will power, determine to do some of the things in life that you thought you could not do. Attempt simple tasks first. As your confidence strengthens and your will becomes more dynamic, you can aim for more difficult accomplishments. Be certain that you have made a good selection, then refuse to submit to failure. Devote your entire will power to mastering one thing at a time; do not scatter your energies nor leave something half done to begin a new venture.
– Paramahansa Yogananda