I hear you, Nazio.
I don't know how old you are, but being the object of "wronging" happens no matter what your age.
I just know that my own anger fuse" is a lot shorter now than it was in my younger days. I used to be a giving and forgiving person.
My problem was I operated that way toward everyone, regardless of how they treated me. Many took advantage of my good nature. You gotta hit rock bottom like I did a while ago and take a long look at yourself and decide to make a change for you - not for anyone else.
Now, I just treat someone the way they treat me. Whenever a new person enters my life, I'll start with a mental blank slate. It doesn't matter if so& so tells me bad or good things about this person. I'm not going to invest effort until I get to know them personally. And, by using the term judgement, I mean it as judging whether or not I desire this person to be more than that of a mere acquaintance.
As I get to know them, I now decide on my own accord if the person is worth the continued investment. I have, and have had depressed friends, alcoholic friends, and the sun is always bright n' shiny friends. It doesn't matter to me if they have issues, struggles or nary a care in the world. A judgement regarding investment is completely based upon their actions as it involves our relationship (friends, more than friends, etc.). Never upon words alone.
I treat them EXACTLY as they treat me. Supportive, kindness, and caring is rewarded and unselfishly returned if it is freely shown to me.
I've removed a lot of people from my life. It's taken a lot to start to feel better. That's when I can honestly say that these bad apple folks really were hampering my life and my outlook.
Acquaintance folks will generally remain that way for me, until they show me something more than just a casual, 'don't really care if I contact you or not' interest.
Anger is not good, especially if you let it simmer for a long period of time, or worse, repress it. I'd suggest you really try & find some type of release outlet. I'm trying to deal with my short fuse problem so I know what it is like.