There's no guarantee life will always be easy. There are always challenges, problems, and difficulties. Things don't always go the way you plan. Sometimes it gets you down, but you can always find your way to get up again. That's just life.
"Life is no straight and easy corridor along which we travel free and unhampered, but a maze of passages, through which we must seek our way, lost and confused, now and again checked in a blind alley. But always, if we have faith, a door will open for us, not perhaps one that we ourselves would ever have thought of, but one that will ulimately prove good for us." ―A.J. Cronin
The key is to enjoy the journey, no matter what happens in your life. Never give up. Whether it's easy or hard, life is not that bad when you just live it with good attitude. Let God guide you. Have faith. Be thankful. Don't complain. Life is still good.