I can absolutely relate with your son's bedroom. When I evicted my son - I didn't touch anything in it, or go into it much, for about a year. He had a teddy bear from when he was a baby, and one time I sat on his bed, clutching the teddy and crying so hard I could hardly breath.
It did pass, I'm glad to say.
Do ANYTHING to keep yourself busy. Plant your little garden 😊
Much Love
Bute xx