OY! What we Mom’s have to stuggle with. I’ve been a WOHM from the word go so my kids are used to being away from me. Even so they have had patches where they were super glued to my leg when I would drop them off at daycare. Thus ending with both of us in tears. This might sound cheesy but how about leaving something with her that reminds her of you? Maybe a photo or something special you make together, a collage of photos of the two of you? Good luck.