It's been my line of thinking for quite some time now, but recent experiences have made this all the more true: Do not bottle up your feelings. Don't take everything you're feeling and mash it into some festering wad of emotion, whether it's angst or annoyance or happiness or distress. Whatever they are, whatever they involve, they're never going to do anyone any good unless you share those sentiments.
It's one thing to completely unleash on someone. That's rude and probably kind of scary. What I'm saying is that if you've got something on your mind, make sure that thought doesn't pass idly by. It will seem to vanish for the time being but days or weeks or months from now it could join forces with all the other super villain-esque thoughts and lay siege on you. That's when you unlock bonkers mode. Try the alternative: be open and honest in a timely fashion and things, equally shitty as they may seem, will work out better in the long run. While the final outcome may settle on the same equilibrium it was destined for from the outset, the oscillations on the way won't be so severe.
For those of you who've read this far, I'm not saying this from the standpoint of someone who's bottled things up. I am speaking as someone who's experienced others bottling things up until they direct their projectile bomb of doomly doom at me. I may be guilty of it from time to time, as no one is perfect. But I try to live my life as openly as I can because things can be misconstrued with ease and you'll usually have one hell of a time reassembling the pieces. Eats, shoots, and leaves, man.