A hater.
Some people would classify nihilists as people that hate everything, although I am unsure if it has a proper term. The first part is incorrect. A nihilist believes in nothing, or more specifically believes nothing has meaning. I don't think there is term.
Stalking..
A Man
Psychological Abuse
SPOILED They can be spoiled, oppositional, or they can be are stubborn.
Smarty Pants Smarty Pants
This psychological term is known as reverse psychology. It involves encouraging someone to do something by suggesting they are incapable of doing it, thereby sparking a reaction contrary to the one originally suggested.
Fear of rejection
The general psychological term is "enabler". It is also applied to someone who makes it possible for a psychological or personality problem to persist. For example, a mother who provides food to her obese son, or a spouse who covers up for an alcoholic. This is likely to perpetuate the situation by taking responsibility for the person's acts or accommodating their problem behavior.
The psychological term for the fear of the unknown is "Xenophobia."
The word psychological describes someone's mental or emotional state. This term is used when someone has a mental illness instead of a physical ailment.
Someone who hates sleep could be referred to as a "somniphobe," as the term "somniphobia" describes an irrational fear of sleep. Alternatively, you might simply describe them as a "sleep hater" or someone who is sleep-averse. This aversion can stem from various reasons, including anxiety, insomnia, or a desire to maximize waking hours.