Neurotic
Part of speech: noun
Definition: A neurotic person
Part of speech: adjective
Definition: (obsolete?) Affected with a neurosis Overly anxious
Example sentence: Everything great in the world comes from neurotics. They alone have founded our religions and composed our masterpieces.
Obsessive-compulsive
Part of speech: adjective
Definition: Characterized by obsessions and compulsions, especially by the need to perform repetitive tasks