a diver
It shows that he goes from someone excited by the pursuit of his dream to someone who realizes he will not succeed.
this person is called a pedestrian
A deserter - or turncoat.
A person who goes against the flow (of society, their community, their established culture, and so on) might be called a nonconformist.
Defector, Traitor, Double Agent.
The five-letter word for someone who goes into water headfirst is "diver." A diver is typically someone who jumps or plunges into water, often for recreational or competitive purposes.
A person who goes into water headfirst is called a diver.
Don't call someone
A recluse.
easy going
A submarine.
Text them, call them, or go to their house.
A free spirit
A tresspasser; the act of tresspasing
Perfidious
When water turns into a gas and goes into the air, it is called water vapor. This process is known as evaporation.
Rapids