It's actually much better; if you haven't heard of 3/3/3 for rescue dogs, it's worth looking up as a guide. We have passed the 3 months
, and she has definitely relaxed and come into her own in that time.
What mix do you have? We found r/lurchers, r/saluki, r/sighthounds and r/reactivedogs on Reddit very very helpful with understanding what might be possible, understanding which behaviours are breed related and getting tips (it is obvious she has Saluki in her, still not sure about the rest!)
It hasn't been easy, but there is a big improvement. We have even managed some walks without kicking off, and, when she does, it has been more manageable. Biggest victory this week was walking past a cat and a squirrel with no reaction, as well as managing to walk past our nemesis (a dog that barks and growls through a fence) with minimal fuss. She never would have done that before. We also have a dog walker once a week to help socialisation, and she has really been helpful with advice, and seen an improvement.
Some of it has been a shift of mindset on our part, adding a sleeve to her lead to indicate she is a nervous rescue has helped, but just management and going on walks where she has felt more comfortable (ie keeping to similar routes). We also now walk with a halti lead (in addition to a harness) and it seemed to make us both more comfortable (you could see her start relaxing into walks when we introduced it).
That's not to underestimate the work on her part to start to try to ignore things! Small, furry dogs are still a challenge, but some of that is prey drive. Unfortunately we live in a place where there are a lot of small, furry dogs!
We did work with a trainer for a while- probably a little early, looking back, as it was all a fear reaction. We are also about to start working with a behaviourist to help the anxiety. If there are are neutral walks in your area (basically a cross of a weak and training, with other dogs. There is a reactive dog one near us that is really helpful) these could be worthwhile looking at.
She is beautifully behaved apart from this, though, and become a real part of the family.
Time, and getting advice at the right stages, seems to be a great tool. Keep things consistent, work out which treats are high value (call our for Trumbles duck sausage here!), try to work out what is causing the behaviour, and expect to sometimes go backwards before going forwards again.