This obviously is a matter for you and your family to discuss. Professional organizations disseminate valuable information and strive to improve numerous aspects of the professions that they promote. Once you have established personal goals and have done the preparatory groundwork, advanced musical study at a university of conservatory should provide the training and initial experience that you will need to succeed in the music profession. But this still leaves a great deal up to the student. You need the discipline to work consistently and hard, the inner strength and vision to continually strive for your goals, and the love of music that truly makes all of the effort worthwhile.
Perseverance can only come from within each individual.
Many naturally gifted musicians have not attained success because they have not had the drive to stay with it during the hard times or to put enough time into refining their abilities. Hold tight to your goals and work hard through the many difficult hours of practice, rehearsals, lessons, classes, auditions, and the sometimes traumatic events that arise sometimes. With goals, preparation, and perseverance you can reap the harvest of your labors. There are several publications that tubists and euphoniumists should own upon their arrival at college as a freshman. Serenade No. 12 for Unaccomp.