thanks madisgram, i already sent a letter to the superiors and I felt much better. I've noticed, I feel a lot better when I get to speak out, and thats probably why writing letters and burning them doesn't work for me until I actually hand them over to the person.

The thing is sometimes, I don't get an opportunity to let the other know, or i get frozen, or confused whether they're joking or are truly being rude, or sometimes I feel maybe i should take it coz if i don't then my work won't be done and they'll make things harder for me and frustrate me more, in those cases I get very angry and the anger stays there, almost forever I think.

Also, in times when I do confront the person invalidates the fact that I'm hurt or say i'm making a big deal out of a small thing, that's also a time I never get over it.

sucks, I really want to figure out a way as affective as expressing my anger directly, but I'm yet to be that lucky.