I have a shitzu, norfolk terrier, miniature schnauzer cross 9 month old puppy. She is very sweet, but after 'nearly' mastering house training she still poos (and sometimes wees) in the house. She seems to think it's ok inside and outside. I spent weeks taking her outside regularly, using a word, rewarding her, not rewarding her and everything I believe I should. If it is relevant we have an older dog who is male and has always been very easy. Also if I crate her, she just barks so that's not an option. Does anyone have any advice?