Venting/confused about my emotions

I'm not an angry person. In fact, not including the past month, I can literally count how many times I've gotten angry at anyone or anything on one hand. But last month I got really really mad at a good friend of mine for a really stupid reason but I didn't really confront him. I mean I told him I was really irritated with him and he gave such an uninterested reply and didn't even bother to ask why and was rude to me again (I was really rude to him at this point, I was literally shouting at him about how annoyed I was with him). After this I didn't see him again for about a week and a half since we had holidays from college after our exams. Then when I went back to college I thought I was over it because I'd stopped feeling angry during the holidays. But after seeing him I got so angry again and now everything he does annoys me. We have the same friend group and because I've been trying to avoid him I've kind of grown distant from the whole group.
When I'd first gotten mad at him, I vented to a friend of mine and she went and told him I was mad at him but he didn't bother to ask why and told her everything is fine.
But now because of this I've gotten so angry and my anger increases Everytime I see him and because of this I've become and overall very irritable person. Just anyone talking to me makes me mad, I've started shouting at people over little things, I get so frustrated over minor problems, start freaking out if something doesn't go my way.
I hate feeling like this but don't know how to get over it
My relationship with my friends and parents is getting ruined because of my anger. I don't know what to do and how to get over it. I hate hate hate feeling like this. Has anyone here gone through something similar?

Hello Cheese123: I see this is your first post here on PC. So... welcome to PsychCentral… from the Skeezyks! May the time you spend here be of benefit.

Unlike you, I have pretty-much always been an angry person. What I strive to do is to use a Buddhist practice which is referred to as "compassionate abiding". Compassionate abiding involves simply allowing the intrusive thought (anger in this instance) to come forward... breathing into it... perhaps even smiling to it. Sometimes I will even place my hand over my heart as a sign of lovingkindness & compassion for it. After a few breaths, I then drop the "story line" & simply continue to stay with the underlying emotion... be it fear, anxiety, grief or whatever.

Two things happen when we employ this practice. First, very gradually over time, the strength & frequency of intrusive thoughts wanes. But second, & perhaps more important, is that we learn we can stay with difficult thoughts & emotions without losing our balance... our equanimity. Here is a link to a mental-health-oriented description of the practice of compassionate abiding:

https://mindsetdoc.wordpress.com/201...e-abiding-101/

May it be of benefit.

Sometimes just getting it out helps. Write it all down; describe exactly what made you angry in great detail and try to include what specifically made you angry and see if you can figure out why exactly it was so significant to you at that moment. If it seems like it was a silly thing then there was likely something else going on between you two or within yourself. Just pour out all the things you've been feeling and why. Venting and understanding the cause of your feelings, in a neutral way where you won't risk being judged or ignored may help to resolve things. Or at least help with the irritability you've been feeling in general.

Then on separate pages write out how you met this friend and why you became friends. Write out the things you like about him and maybe some good memories that you shared. See if it balances out any of the anger in remembering why this friendship mattered to you.

Once you have a solid grip on it all you may, hopefully, be able to talk with him about it calmly and without anger. Try saying something like "When you (did or said something) I felt angry (or irritated) because (the reason it made you feel that way)." That way you avoid accusations that could make him feel defensive and not listen to you. It might sound silly but I've actually had a lot of success using it in conflict when the other person and I both were so angry that we weren't really hearing each other.