Hi William. Try not to worry . My High drive Border Collie was awful with severe biting from the moment I got her ay 7 weeks. Drawing blood every time, to the point my Doctor thought I was self harming. I gave Zed loads of “time outs” behind the baby gate so she was excluded but I also got her a bite cushion so she had an outlet for her need to bite. Regards the “time outs”. I have a tiny kitchen and would literally pick her up by the scruff of her neck , give a little shake and tell her “No Biting”, put her behind the gate till calm. I had to do this up to 30 times on some days. Then with the bite pillow I would tell her “Good Bite”. She soon learnt she was only allowed to bite the pillow. I moved her on to a punctured soccer ball which she kills daily and rags it to death. Just so you know , she is a lovely dog now, so stick with it. I hope this is of some help. I have trained dogs for 49 years since I was 6 years old. Wishing you success, Laura and Zed.