Psychologists have identified four stages of personality growth. in which stage does a person develop life skills and learn to take initiative?

A person develops life skill and learns to take the initiative in childhood.

There are various of periods in a child's development, since each period

has differences regarding start and ending.

Some age-related development periods and examples of defined intervals are:
Newborn                  (ages 0–4 weeks)
Infant                        (ages 4 weeks – 1 year)
Toddler                     (ages 1–3 years)
Preschooler              (ages 4–6 years)
School-aged child    (ages 6–13 years)
Adolescent               (ages 13–19)
In all these stages a person develop life skills nd learn to take inititive
i hope it helped

The best way is to swollow and hold in your breath