Training tips for aggression towards cats?

I have a 4 year old lab/pit mix, she was super sweet with my other dog (12 yr dachshund) and my mom’s 2 cats while I lived with mom but then I moved in with some friends and their dog attacked her a couple years ago. Since then she’s changed. I don’t know if I would say she’s reactive but when dogs would bark at her on our walks she became standoffish and try to lunge and she would try to chase after the stray cats. I immediately started muzzle training her and working on redirecting her attention away from the dogs and cats. This seemed to work, we can go on walks and she rarely needs the verbal commands, she just ignores everything but me. But now I moved back home with my mother and she has 2 new cats that my dog is not a fan of. She’s fine with older ones but showing aggression towards the new ones and none of what I did before seems to work. I’m out of work right now so I can’t afford for a professional trainer but I planned on looking for one as soon as I get a job. Right now I’m working on trying to redirect her from looking at the cats like food with treats, I keep her muzzle on when in the shared areas and take it off when on walks in our yard, feed her away from the other pets and keep her kenneled in my room when I’m out. Is there anything else I can do to help?