Being Angry

Being angry is neither productive or healthy. But I am so mad today over an on-going "problem"
The "problem" is... I don't know what the "problem" is.
The one who frustrates me is also the one in the past has given me healthy and productive advice like this.

“Whenever you go out of doors, draw the chin in, carry the crown of the head high and fill the lungs to the utmost; drink in the sunshine; greet your friends with a smile and put soul into every handclasp.
Do not fear being misunderstood and do not waste a minute thinking about your enemies.
Try to fix firmly in your mind that which you would like to do and then without veering off direction, you will move straight to the goal. Keep your mind on the great and splendid things you would like to do and then as the days go gliding by, you will find yourself unconsciously seizing upon the opportunity that are required for the fulfillment of your desire, just as the coral insect takes form the running tide the element it needs.
Picture in your mind the able, earnest, useful person you desire to be, and the thought you hold is hourly transforming you into that particular individual.
Thought is supreme.
Preserve a right mental attitude - the attitude of courage, frankness and good cheer.
To think rightly is to create.
All things come through desire and every sincere prayer is answered.
We become like that on which our hearts are fixed.
Carry your chin in and the crown of your head high.
We are gods in Chrysalis.”
- Elbert Hubbard