Its just a phase I am told ....
Sounds just like Salty (20 months) who still loves hiding under a table and barking, but is getting so, so much better
House-line worked for us as we could get him under control with no hassle and he knew it
Out on walks he still pulls like a train - I am currently perfecting Salty's walking 'Rig' actually
It is made of a Halti lead, and old halti collar (not around his neck) and a perfect fit harness.
The collar attaches to the second ring on the lead and goes to his harness back ring.
The end of the lead goes to his front ring.
I adjust the collar length so that it pulls on the back ring but if he pulls too much then the tension is also transferred to the front ring.
At my end the harness is looped around my waist, which I move down to my hips when he sees a cat or smells another dog track
(My wife says I am a typical Engineer but what does she know, she's just a Psychologist
)
He still pulls but its more comfortable for everyone and I can pretend I am training by 'ignoring bad behaviour'
Actually it is slowly, very slowly working I
think hope
In any case walks are less painful for us now - Its amazing the power a 12 kg dog has
If ever I get downhearted I think that at least it wont take as long for him to pass through this phase, as it will for my daughter .... (I jest, she is an Angel)