Student or Learner
Are you afraid that your friend would laugh at you, or would not understand what you are going through?
Why is the past form "would" used in the sentence when obviously it is a present-time setting?
Should I change them with "will" and " will not"?
Are you afraid that your friend would laugh at you if you ...?
However, "will" can be used just as well:
Why don't you tell your parents that you're moving to America? Are you afraid they will laugh at you?
Are you afraid your parents would laugh at you if you told them you were moving to America.
In both of the sentences above the "telling your parents" action hasn't happened yet.
Remember - if you don't use correct capitalisation, punctuation and spacing, anything you write will be incorrect.