I have a 10 month old collie mix and he is really anxious, barking and growling if the door goes or anyone new enters his space, barks and growls at anything he deems unusual on walks (this can be a certain house he has decided is sus, scooters, bins, anything).
We walk him before the world gets up to expel his energy safely and use chews and calming collars already.
The MILS come around 3x a week and he reacts the same towards them as he does strangers for the first 5mins, barking, peeing, hunches up... then once he calms down he's fine...so exposure doesn't appear to work.
My question is, is there anything that can be done to chill him out and make him less nervy of anything new? I'd be up for anything including getting him a companion if that would help..? (or would that double my issues?) Ideas would be happily received.