Well, it depends on what kind of situation you're in. But the best advice is to handle it the best you can. If you really have no idea how to improvise in the situation, search on the internet to see if other people have experienced what you're going through, and follow some advice that would seem like it would really help in your situation.
The proverb, "The cure for boredom is curiosity; there is no cure for curiosity." means that you will never be bored if you are curious because curiosity can never be taken away.
Sorry, it's only one sentence!! It's a start, though, and maybe it could help you to write the other 4 sentences.
Answer:
This all depends on context, but in general:
Neutral: Generally having a middle ground opinion rather than being on an extreme side.
Positive: Usually refers to one's attitude, optimism. Can also mean certainty.
Negative: Not positive, could be referring to pessimism or seeing the bad side of things.
