The word when you admire someone and you do whatever he does in his life

Generally, that "white thing" is called a cast (see definition 6c).

A rigid casing (as of fiberglass or of gauze impregnated with plaster of paris) used for immobilizing a usually diseased or broken part.

Like this:

Perhaps self-absorbed

absorbed in one's own thoughts, activities, or interests

or egocentric

regarding everything only in relation to oneself; self-centered; selfish

or self-centered

concerned solely with one's own desires, needs, or interests

SUPPLEMENT

Also consider self-directed

(of persons) free from external control and constraint in e.g. action and judgment

Note that this term is often applied to someone who does attend to the needs of other but exerts a good deal of independence in doing so.

and autonomous

Not controlled by others or by outside forces; independent