Oh, do I feel you there...
Right after my daughter moved out, I cleaned out her teenage stuff (posters, etc) from her old room with the intent of using it as a reading room, but I found I missed her more doing that so avoided it after awhile. Then it became the household repository. I just now reclaimed it a couple of months ago, step by step, after 8 years of my empty nest avoidance. Doing a little each day was key.
Have fun reclaiming your craft room!
All Needful Things
"Knit on, with confidence and hope, through all crises." Except carpal tunnel.
- Elizabeth Zimmermann