Are you the master of your fate?

The last line in Invictus by William Earnest Henley says:

It matters not how straight the gate,
How charged with punishment the scrolls,
I am the master of my fate;
I am the captain of my soul.

Where you are in life if you are truly the master of your fate, is where you directed yourself to be or allowed it. How is that working for you? The place you are now are you 100% happy with it? If you are not, and you are the master of your fate, why didn’t you chose a better outcome, or allowed a lesser outcome to happen to you?