Can a sibling rivalry stop?

hi i was asking if a sibling rivalry can be put into an end because you see me and my twin brother are bitter enemies we always fight ever since we were just little kids and as we get older the war gets worse we have almost everything in common like the way we both think,desires i mean everything but there is one thing we don't have in common my parents told us our clothing colors because mine is black and white and his is black and red that's one of the reasons we fight each other and now were both 20 and our rivalry is unstoppable not even our parents can stop our fights every time we see each other its like we feel the rage inside of us and all we can think of is killing each other