We must lay one brick at a time, take one step at a time; we can be responsible only for the one action of the present moment. But we can beg for an increase of love in our hearts that will vitalize and transform all our individual actions, and know that God will take them and multiply them, as Jesus multiplied the loaves and fishes.
Work when there is work to do. Rest when you are tired. One thing done in peace will most likely be better than ten things done in panic.