STD, it took me a while to let go of "stuff" of my parents' when they died.
Thank God I lived 3500 miles away from them and that made it problematic for me to bring any more home than I could fit in one pickup truck load. But I packed that thing full-up - and my place is teensy and was already full enough. I moved piles around for...a while.
I know you know this, but drinking wouldn't solve it.
Soldier on, my friend. Git 'er done. Stressful, though.