On the way to adulthood

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Across
  1. 3. What is Insulin?
  2. 4. What is the opposite of adulthood?
  3. 5. What are parents or teachers for you
  4. 6. What is a long period of time called in which you feel very sad?
Down
  1. 1. What do you call sudden changes in feelings?
  2. 2. What is a small group of friends called?
  3. 7. How are people called who are around the same age as you?
  4. 8. What had affected many people during the coronavirus pandemic?