Being frustrated/angry all the time

Being frustrated/angry all the time Anyone else that always has an 'angry' state of mind? Like I feel angry with the world all the time. Towards other people (especially my parents), I tend to be quite brusque and short-tempered. I feel like this kind of frustration is a result of me stuttering (however mild), but this angryness also makes my stuttering worse in time. Anyone else feels/felt like this and learnt how to be and think 'sweeter'?