I've noticed that my emotional states are often much more subtle than the abstract notion that they follow. For example, when I'm depressed I'm not sad, I'm as calm and relaxed as ever, just unmotivated. When I'm anxious, I'm not shifty or shaky or stammering, I just calmly hesitate and reflect a bit more.
Unfortunately, because I didn't identify these states for what they were, I didn't treat them as problems to be solved, but as "just how I feel right now." Only later, when my motivation and agency returned did I diagnose and treat my own light deprivation (SAD), or test an anxiolytic.
If there's a lesson here, perhaps its to always trust that improvement is possible, and to make efforts regardless what we think is "just us".