Does everyone have a sibling like this?

So.... We are a siblings of 4 and one of us tends to have a really bad temperament. We were abuse in our younger days, two of us turned out very logical people and one turned into suicidal and one sibling is happy one moment then one thing ticks them off and they explodes. It is bad because that sibling hurts animals or people sometimes... Slam doors and makes a lot of noise. I have a really bad case of anxiety and i really hope that it is my anxiety that is whispering in my brain saying, there will be one day that sibling will be capable of doing something irrevocable...