Hi, and WELCOME to YT!
You're singin' my song! LOL Abbie is 4months, does very well with having the "pee pee on the paper" (we use newspaper) down, but seems she doesn't believe in doing #1 and #2 in the same spot. I still find little surprises hither and yon. Thank goodness she's rawfed, so the stool is not as icky as kibble fed pups.
I'm sure the more experienced folks will come by and we can both learn! They'll more than likely tell us - patience, Patience, and more PATIENCE.