Some things to consider about behavior :
What you are doing...Is it getting you what you want or need ?
Is what you are doing helping or harming ?
As far as getting angry...
"That makes me angry"....is a common phrase.
I would suggest that one take a moment and think about that phrase.
If someone or something "makes" you angry...then you are allowing someone or something to control you , your emotions and your reactions.
Personally I do not like others to control me....
When in a frustrating situation , it may be wise to ask yourself : "So what ? "
So what ? , as in , will this matter or be important to me 5 minutes , 5 days , weeks , months , or years from now...?
When someone is frustrating you...are they "pushing your buttons ?"
If so...remember who actually "owns" those buttons.
Please note that the above is not a critique or the like...Just some things to consider.
Andy
Edits for pre-coffee typing...LOL