Idk if you’ll be able to help with this but I have a lab/gsd mix who just turned 2 years old last month, but he is just… Always. Barking. We live in an apartment complex and he just constantly barks at every person/sound he hears and he even tried to attack our neighbour once, we’ve actually thought that he’s just being protective but we really can’t have him bark constantly and attack people because we’re scared our landlord will tell us to get rid of him because of the noise complaints
Hey since we aren’t trainers, and cannot assess your dog in person, we don’t give training advice beyond finding a qualified trainer that can do these things, especially in the case of aggressive dogs. I urge you to find a trainer immediately both for your safety and the safety of others.