[bowsamic]

I think it matters because the treatments and prognosis for anxiety and depression are usually quite different. For example, the mindset if you have long-term anxiety disorder should be "how can I treat this?" but the mindset if you have long-term depression (dysthymia/persistent depression) should be "how can I cope/live with this?"

I definitely agree with your second paragraph. I would actually extrapolate it slightly further and say that it's worth OP asking themselves if they actually simply feel unmotivated, and anxiety is a good way to pin that fact on something tangible or understandable. If my hypothesis that it is a depressive disorder is correct, I think that is quite likely. But that's a question for OP, obviously not one that I can infer.