Most of my students have experienced the following scenario, especially in our first semester together:
[Student begins playing the first assigned etude or solo of the lesson, only to have me wave them off a few bars into the performance (yes, a lesson is a performance) after too many mistakes are made to ignore.]
Faske: (after a pause) "Did you practice this?"
Student nervously replies,"Yes, I did...."
Faske: "How much?"
Student: "Half an hour each day this past week."
Why the frown? The answer to 'how much did you practice?' isn't a number as much as it is a measure of thoroughness. As a teacher, nothing would make me happier than to hear "I was really having trouble with the descending wide interval slurs, so I spent lots of time on those so I could figure out why they were giving me trouble. That made everything easier!"
I understand why it doesn't happen. Students are conditioned by everything around them to check boxes and "get things done." it is easy for practicing to become just another thing on that list, but take a moment to consider that, except in rare circumstances, you had to audition on your instrument to join your college music program. Why not let it be the thing that helps carry you through your degree, as the challenges get tougher and more numerous? Don't lose your love for your instrument and let it be just another box to be checked.
Good luck!!! If you have questions, I am happy to help!