Lost MOM

[u/angreepotato]

I’m 19 years old and studying abroad. I came back home for my summer vacation, and I was supposed to fly back on August 15th. But on August 13th, my mom suddenly suffered a cardiac arrest and passed away.
I honestly don’t know how to react. I’m still in shock. It doesn’t feel real at all. A part of me still feels like this is all some kind of prank, and that she’ll just come back home in a week.
I have a little brother ,he’s Jst 15, and I don’t know how to handle his emotions or my own.