<p>I will second the advice already given. Having played the piano and trumpet, you are probably already aware that a well thought out practice plan will make your work time far more effective. </p>
<p>As for whether 3 years is “enough” to get into a good jazz program, we can’t begin to tell. There will always be the question of talent.</p>
<p>To quote my high school basketball coach, “Hustle beats talent, when talent doesn’t hustle”. Of course, unsaid was “talent beats hustle, if talent hustles”.</p>
<p>Put another way, I can practice saxophone 24/7, I’ll still never be Coltrane.</p>