Rakhsha Bandhan

No siblings relationship is perfect . Even me and my sister fight and argue but after some time we again become normal, laugh and tease each other.
And remember if you want a good relation with your sibling, it's important to have a proper communication by keeping ego and anger aside. You'll not get that instantly, you need to put efforts.

What happened bro? Whatever it is, you gotta maintain at least 1% relationship with em. Can't cut off completely.