1. You'll be fine.
你不会有事儿的。
2. What are you worrying for?
你有什么好担心的?
3. There's no need to worry.
不必担心。
4. There's nothing to worry about.
没什么好担心的!
5. It'll turn out all right.
一切都会好的。
6. It isn't as bad as all that.
没那么严重。
7. Things are never as bad as they seem.
事情往往不像看上去的那么糟。
8. Every cloud has a silver lining.
天无绝人之路/黑暗中总有一线光明。