I agree saiku. I've found that what happens is often 1) you feel down because of some real-world event, 2) you evaluate what to do, 3) you feel pretty depressed. 4) you eventually figure out how to solve it, 5) you take action and overcome it, 6) you're back stronger than ever having gone through the "yuck" and having become a better person.
If you tell the world in or after step 3) that you're feeling terrible, you can do damage. Best to keep quiet there or confide only in trusted sources at that point. Once you're out, you're back to normal and it is best to not have a world of people thinking that you're still in a dire situation.

Thank you for sharing saiku! I appreciate it.