guarded — cautious; careful; prudent: to be guarded in one's speech.
helped — to give or provide what is necessary to accomplish a task or satisfy a need; contribute strength or means to; render assistance to; cooperate effectively with; aid; assist: He planned to help me with my work. Let me help you with those packages.
lost — no longer possessed or retained: lost friends.
protected — to defend or guard from attack, invasion, loss, annoyance, insult, etc.; cover or shield from injury or danger.