A Renegade.
A Pioneer
First Mover
A beta tester.
Initiator
The first person to watch something fall. OR The first person to live.
An esthetician is a person that acts something like a dermatologist.
Hypocrite
No, a prototype is a first or early version of something. A protege is a person who is helped and protected by another person.
a kindred soul
wingman
Such a person is called a "mercenary" or it may be said the person is "materialistic."
A person in their thirties is commonly referred to as a "thirty-something" or can simply be called an "adult."
a so called friend
A person who creates something totally new is considered an inventor. He or she creates something that has never existed.