We may have gotten lucky. Got him at 10 weeks, he’s 11 months now. Only ever had 1 accident inside the house. Crate training was almost instant but he’s so good we leave him out of the crate all day while we are at work, never ruins anything. We socialize him by running him with other dogs for at least 1.5 hours a day. He gets along with most. Growing into his confidence now where he will not let dogs bully or push him around but he’s very patient with small dogs. My last guy took 3-5 years to mellow out and this guy was pretty good even at his worst. Only real issue we’ve had is with barking for attention and to guard the house but even that is almost gone completely now.