Underwater.

I have been so irresponsible and lazy and unproductive this year. But the scariest part is that I haven't seemed to care. I have lost all passion for anything. I'm just existing. I want to do well in school and be good at the trumpet and have a clean apartment and make money but I just DON'T CARE. I don't know what's going on. Is this what depression is? I am honestly asking that. Because if it is I need to fix it. Where in the past year did I lose my will to do everything and do it well? Where did my passion for making music go? Am I in that much over my head? I don't think I've ever felt like this before. I just keep breaking down over and over in every part of my life. How do I fix it?