I feel a constant sense of inadequacy and that I haven't achieved enough, but it...

I feel a constant sense of inadequacy and that I haven't achieved enough, but it doesn't really get me down or stop me from enjoying things. It's just background noise that sometimes flares up in intensity, like when I feel like I should have known something or I failed at a task. That isn't fun. I work to address this by constant self-improvement and making and achieving reasonably attainable goals. That helps.

I guess I also worry about the health of the relationships I have with important people in my life and what I'm doing to maintain them.

I don't think any of these things qualify as depression though. It just feels like to me that's what life is.