Okay this description is pretty good at getting a point across and explaining what the series is about, though after reading the first chapter I think it could use some edits.
A major story I got from the first chapter was Donnie having to chose between become a better person or just taking the easy way out and going full violent on people. Therefore, that should essentially be what your blurb says.
Attempting to rewrite it, I came up with this:
Donnie is a psychopath who wants to escape his destructive downfall, but to do so he'll have to accept his country's twisted and backward ideals. For now, he's taking advice from different entities, whether it's his plush toy Libby, his psychotic neighbor AJ, or a masked dream figure known as the Masked Stalkee.
Essentially that condenses as lot of the details into two, easy to read, sentences. That being said, after reading the first chapter I do sense that there will be more to the story next, so consider this a rough draft. For example, if he does eventually go on these "Mischief Nights" regularly in the series, you can definitely mention those in the blurb.