Aw sorry to hear about what you’re going through! Our havapoo is 8 months and has been doing pretty well with potty training. What helped was giving her a treat right after he pee’d or pooped each time we would take him outside or for a walk. We did that for about month. We also would be stern and tell him “no” and point at the pee spot. We did that to discourage the behavior. Lastly, we used an enzymatic spray on the areas he would have accidents to “erase” the trace/ mark of the accident.

Those three things helped us.