I just read this poem in a book I'm reading and I think it's beautiful and hopeful and triumphant, just like you are describing. I disagree with parts of it (maybe I'm not understanding it). I don't agree about not crying or being afraid because I think you can't be brave without being afraid and I think it takes strength to cry but for the most part I love this poem. Here goes:
Invictus
(by William Ernest Henley)
Out of the night that covers me,
Black as the Pit from pole to pole,
I thank whatever gods may be
For my unconquerable soul.

In the fell clutch of circumstance
I have not winced nor cried aloud.
Under the bludgeonings of chance
My head is bloody, but unbowed.

Beyond this place of wrath and tears
Looms but the horror of the shade,
And yet the menace of the years
Finds, and shall find me, unafraid.

It matters not how strait the gate,
How charged with punishments the scroll,
I am the master of my fate;
I am the captain of my soul.