So to any young kids who get into this "I am intelligent therefore depressed."
I've been there and what I've found is that if you are like how I was. I falsely correlated analysis of the universe and the discovery of it's harshness with how I was feeling and probably erroneously ignored my bias (because I was depressed) to focus on negative realizations.
It was my caustic family environment, my lack of individual freedom, poor sleep, poor diet that was making me miserable.
If you're feeling this way you need to look into Mindfulness and why existence even in its brutally bleak appearance can be an enjoyable quiet morning listening to crickets as you wake up, or being aware of noisy air vent that sounds interesting, or even the curiosities of your own wandering mind.
Our experience of existence is relative to our framing. Emotional intelligence is learning to side step the current and enjoy observing the river.