You're doing just fine. I don't really remember the date my ex left but my anniversary with him usually blows by without me remembering anymore - and that's a very good thing!
The same thing may actually be happening with Joseph or BS or whatever it is this month because his bio says:
"Divorce Final: 4/12/2018"
So it may actually be another week yet BS? Or do you just need to change/update your bio? Either way, the date is already elusive - and that IS a good thing! I can remember both of my dates (bomb drop and divorce) but they often pass by several days or more before I say "Oh yeah, Monday was the anniversary of...
DonH Midwest Me 56 WAW-EXW 55 Met 11/95 / Married 5/00 Bomb 6/20/05 / She Filed on 6/2/06 / Divorced on 10/9/06 4 who'd qualify as GF since D & dated about 25 women since D