I have two dogs, they are Sadie (a bullmastiff), and Anja (a German shepherd). I used to have three dogs but Spot (a great Dane) recently passed away.
All my personal dogs were given up by their previous owners due to a long list of behavioral problems.
I have to rehabilitate my own dogs the same way l rehabilitated all those dogs who came to me for help. I have experienced and solved the same problems you are having now (e.g. aggression, fearfulness, anxiety, reactivity, leash pulling, jumping, barking, biting...). l can relate to all your pain and frustration.
By looking at my dogs now, l can also share with you a message of hope that only those who had owned and lived with difficult dogs can relate to.
When I offer you a suggestion to solve a behavioral problem, it is not a suggestion I read from a book but something I have actually tried and obtained real results with.
Proper training can really transform difficult dogs - a massive leash puller can learn to walk nicely, a fearful dog can be very calm in public, an aggressive dog can be around children in a playground, and a reactive dog can walk calmly past many barking dogs...
Let's work togther to give you and your dog a new life. Give me a shout today. I can make it happen.