Insecure
Phobiactic.
a wuss
Because they are afraid
The midnight society.
a fear or phobia
a big baby
From what I understand there is no specific phobia for people who are afraid of mail. Most just call it Mail Phobia...
nahh
outspoken?
Nosophobia, Nosemaphobia or Pathophobia.
Ambitious.
Someone who is obsessed with themselves is commonly referred to as narcissistic or self-absorbed.