Prayer is easy only for beginners and for those who are already Saints. During all the long years in between, it is difficult. Why? Because prayer has the same inner dynamics as love, and love is sweet only in its initial stage, when we first fall in love, and again in its final, mature stage. In between, love is hard work, dogged fidelity, and needs willful commitment beyond what is normally provided by our emotions and our imagination.
It's when I say, "I don't know how to love," and, "I don't know how to pray," that I first begin to understand what love and prayer actually are.
If we just worry about the big picture, we are powerless. So my secret is to start right away doing whatever little work I can do. I try to give joy to one person in the morning, and remove the suffering of one person in the afternoon. If you and your friends do not despise the small work, a million people will remove a lot of suffering.