Let me explain. When you start out this anime, you'll meet the protag, and come to find out "huh... we are oddly alike". As you watch it, you'll see a change in this protag, and in some cases, for the worse, and in others, for the better.
I think what makes this anime very high up on my list, but also not a masterpiece, is that it feels real. Like obviously, its about vampires... which I'm guessing aren't real (if they are, I'd love to meet one and chat). But what is real, is the emotions the protag goes through.
You'll see them take the time to think through their ups and their downs, the highs and lows of their day. You'll see them try to rationalize emotion, while also being an emotional wreck.
What this anime feels like, is an endless rollercoaster of emotions. From seeing someone hit rock bottom, to rising towards the top. From seeing someone hide their emotions, to learning how to express them.
This anime is a surreal experience, and in many cases, spoke to my soul. It spoke to my desire to want to actually enjoy life, and gave me a lot to think about.
So I will say this... don't give up, find a way to step out of your comfort zone, and you'll come to find out, things aren't as bad as you make them out to be.
That is what this anime teaches us.
