I am not sure that you are "crazy" in any way, shape or form! There was a book that I read for a death, dying and grief class... putting the link below.
This momma had me balling my eyes out. Although I have not lost a child, the reaction was visceral. Closer to the end of the book, there is a part where her two daughters had found the box of Hannah's things that Mom could not part with. She felt the exact same way you describe it, of she got rid of everything, it was like erasing her child. What would Hannah think of that? The girls put on Hannah's shoes, put band-aids from the box all over themselves, and started dancing all over the place. The Mom found herself at a crossroads- does she yell for disrespecting Hannah's belongings, or live in the moment? She laughs and starts to dance with her daughters, knowing that is what Hannah would have wanted. The Mom states it was then that she knew things would be "ok." (Notice there is no fantastic, just ok.)
I think you should do what makes you feel comfortable. Maybe you ask Aletha what she thinks about it? Either way, ((hugs))
Hannah's Gift: Lessons from a Life Fully Lived: Housden, Maria: 9780553381221: Amazon.com: Books