Nope. You're not alone. I never get it all put away the day after or even the first weekend after. We bring it all in the night of Halloween (we don't have as much as you do). It all gets put in the basement room where it's stored & the indoor stuff stayed up until yesterday.Please someone else on here assure me that I am not the only one whose inside is still fully decorated ...!
I still have a dining room table full of indoor decor I just took down yesterday that needs to be stored & about 10 ziploc bags of the dollar store paper lanterns sitting on the DR floor.. I finally got the outside stuff that was brought inside, sorted out, stored & a pile to sell/donate/etc. yesterday too.
I will be putting up Christmas stuff & find something I missed. A paper decoration, a wreath, something outside, just something, there's always one thing I forget.
As I'm typing this I realized I forgot a witch sign that was up at the front door.