I used to get angry a lot..still do once in a while. Its usually my depression talking and I know it. I do remember in high school though...I got angry but it was more frustration..I would get so frustrated and I was an only child too...so can't blame a brother or a sister. I disliked "me" so much and how I looked. I would try a blouse on and if it did not look right or whatever, I have actually ripped the blouse in half and threw/hid it in my closet......talk about having issues!!!

Then I did not know how to deal with my feelings and back then in the dark ages there were no therapists or meds......I never got any help at all..just ripped clothes in the back of my closet......

For you maybe just leaving might help...even if its in the yard hiding somewhere or walking down the street. Years ago I used to power walk and that really took away my rage. When I got back home I felt great and my rage was gone!! Yeah to that!!!!!