Dog Training Job - Randburg, GP, 2194

I have a pittie but am struggling to train her. She's great with humans but recently has become overly protective and intolerant of other dogs. She will pull the lead out your hands if she has a chance to get to them. She will be 2 years old in Feb 2025. I love my baby but I know with a power breed they need to be trained so I really need help.