"When you are utterly frustrated or angry, express these feelings. You don't have to be nice all the time-- just most of the time."
Bottling it up is never good. Some people see these type of
stoic
people as nice people because they don't complain all the time. The truth is, not everyone's perfect. We all explode after a while if we keep it all in. So let it out. It's okay to complain and whine about something because life is full of disappointments. People who tell you to just deal with it should take a good look at themselves because they don't want you to let it out. They want the attention so don't give it to them. It's not a crime to express your feelings. Sure you can keep it all in and bottle it up but its healthy to let the emotions out once in the while so you won't explode-- exploding is never good. Like the aphorism says, you don't have to be nice all the time-- just most of the time. This means that you can let it all out in a swear word frenzy every once in a while.