I don't know if any of what I say will help but here it goes...
My neighbor's daughter did the same, she was only 18 or just about to turn 18, either way; it was tragic.
I think about her often (daily), she grew up around my kids, she was part of our family. It took time to gain a sense of normalcy. I'll never be fully over it.
I tell you these things so you are aware, things will never be the same. You will grow into your new life. I'll tell you what... my new life is better knowing she was a part of it.
I've come across a lot of people in this world and many of them I don't remember... I'm happy to know I'll never forget her.
Honor her.
SH420