It is as it is, and it goes as it goes ... 
And in history, there are many composers who work was initially rejected or hissed and booed, and yet, hundreds of years later, it is still listened to and loved ...
Perhaps if I had tried and failed and was now living in a refrigerator box next to an unfinished foundation hole, with a load of psychiatric problems, and excuses, the flick would be a great hit ...
Life is an exercise in patience and perseverance
You can't push on rope ....
To be yourself in a world that is constantly trying to make you something else is the greatest accomplishment. - Ralph Waldo Emerson
The journey is as important as the destination ...
you cannot let the immensity of a task weigh you down ....
People say that a journey of a thousand miles begins with a single step ....
I say that a journey of a thousand miles begins with a single step, because it has to, given that you can't take more than one at a time ...
And when you take that first step, that is one less than would otherwise be the case if you sat there and did nothing at all, because you were daunted by how many footsteps there are in a mile ...
If you are building a rock wall, you can only do it one rock at a time, since every rock depends on every other rock to stay in place ...
So too with the days of our lives ....
Be in the moment you are in, for there are no others ....