I have this exact same feeling...people have expected me to be over losing my little sister since I came back to school almost. They want it to be done and over because I was like the "mom" of our group that I hang out with. It's a new semester which has opened a whole new can of "I'm not over it" since my professors may or may not know.
I do wonder if she was scared, if she was hurting, if she felt alone, if she suffered, if she waited for help to get there. I hope she wasn't scared and I can assume she didn't hurt too bad because when we got her jeans and hoodie back they didn't have blood stains. Of course we didn't get her t-shirt back either and I know she had to have one on. I wonder what happened and how it happened so often.
I guess I know that at 11 months I still won't be over it and that's okay. I don't know how to get over this. It isn't like I feel down and it will heal in a few weeks.