Problem:
Frustration is not discontent but lack of reward in your profession. Discontent mean you give up altogether whereas in frustration you are prepared to put in more hard work to hone your skill for better, higher results and quick promotional avenues.
Project Management profession in fact highly rewarding and satisfying but as in any other profession, including medical (Doctors) requires patient aquisition of experience. It never ending process in this fast changing, varied field and innovative technological world.
The word professional traditionally means a person who has obtained a degree in a professional field. The term professional is used more generally to denote a white collar working person, or a person who performs commercially in a field typically reserved for hobbyists or amateurs.
In western nations, such as the United States, the term commonly describes highly educated, mostly salaried workers, who enjoy considerable work autonomy, economic security, a comfortable salary, and are commonly engaged in creative and intellectually challenging work.