I Have Experienced Loss

I lost my beautiful sister, my only sibling in a horrific house fire. What is even worse, she had MS and was never left alone. I was late that day thus a small window of time and flame took everything, I mean every. Single. Thing. In her home in minutes. I’ve never forgiven myself nor come to terms with it. No cause ever found.
Worse, her oldest son, my Godchild, nephew and son passed in April 2018. Drug overdose. I had tried hard to look out for him. He'd already been thru so much trauma. I failed.