There are so many great things that could be said about this poem, that I'm not even sure where to start.
"Tested by time,
Tested by change,
Caught between the two,
I failed horribly"
^That would be my favourite part, probably because you described that feeling with words that most people would never think of (the caught between the time and change part).
For no particular reason, I usually prefer poems that rhyme. However, I don't think this poem would have been so good if it had rhymed. Great write.
~Jaime