SMD, I defy you!

So, I am currently very upset with the way that my musical education is being handled. By myself, by my advisers, by my conductor, by the head of the department...It's all one huge mess that may possibly result in me doing something drastic. Switching to a vocal major? Dropping the music part altogether? Never...
I'm displeased with how my trumpet teacher is reacting to the fact that I'm not registered in an hour lesson. I was doing fine until he realized that he's not getting paid for the full hour. Now all hell breaks loose as I immediately head to the Head of the Departments office for a battle royale. Already my relationship with the man is tainted by the fact that it was he who called and told me that the scholarship I was supposed to be receiving was in fact half of what it actually said. I disagree with his policy. I disagree with his clerical errors. I disagree with the audacity that he has to tell me that if I think working is more important than joining the symphony orchestra, that I should quit school. I'm angry and upset about all of this. In addition to my musical experience, lately. I don't particularly care for being berated every single goddamned rehearsal by someone I don't feel has faith that I can do it. I don't understand his motives for putting me on the spot time after time but, I don't think they are conducive to the goal of Wind Ensemble. I don't particularly care for how mediocre this department is. And I don't care for the fact that regardless of how angry I am, and how accurately I deduce the problem and express my thoughts, not much will change for me.