My mommy died

I'm having a hard time. I thought 2012 was bad enough. But my mom died yesterday. It was sudden. She's young and I still have two little brothers that she needs to raise (age 7 & 11). She went in to have an in and out knee surgery on the 27th. On the 29th she woke up having a hard time breathing. She had been sleeping with my 7 yr. old brother that night because he was feeling sick. When she got out of bed she laid herself down on the bathroom floor and called for my little brother to go get dad. She was having such a hard time breathing that my dad called 911. About a minute before the paramedics arrived, she stopped breathing. He did 30 chest compressions before the paramedics took over. But it took 12 minutes for them to get a pulse back. Basically what happened is that blood clots went into her lungs. She's been on life support. Yesterday morning after a series of tests they decided to perform the test that would be our last hope. An apnea test. They took her off the ventilator to see if she would spontaneously breathe on her own. My Dad, Spencer, and I were there begging her to breathe, but she just wouldn't. She was declared brain dead and will be an organ donor.
She was homeschooling my two little brothers whose lives have now flipped upside down. My dad lost his best friend and we all lost the heart of our family and home. We miss you so, so, so, much mommy. We love you.