Shazzie, how old is Taz? Sounds like you already have a lot on with kids, cats and another cocker. Extra stress makes things seem much worse as does feeling tired and there is no doubt about it pups are hard work
We have our second cocker Poppy (who is 15 weeks). I think she is getting the hang of house training but I also think despite what other say that unless you can devote every minute of every day to the task it does take time, patience (of a saint
) and lots of perseverance.
Bramble must have been somewhere near six months before I felt like I didn't have to watch her like a hawk!! Even now at 3 and a half we still do the praise/treat thing
All pups are different and so take each day as it comes, try and be consistent and methodical and don't beat yourself up because little one hasn't got it yet, it will happen eventually. And don't let the clever clogs out there who say how brilliantly their pups are doing get to you either!!