A Renegade.
A Pioneer
First Mover
Initiator
The first person to watch something fall. OR The first person to live.
The person who is the first one to test something is often referred to as a "pioneer" or an "early adopter." They are willing to try new things before others and provide valuable feedback on the product or idea.
Hypocrite
An esthetician is a person that acts something like a dermatologist.
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
A person in their thirties is commonly referred to as a "thirty-something" or can simply be called an "adult."
Such a person is called a "mercenary" or it may be said the person is "materialistic."
a so called friend
The first person in the group is called a charter member.