As a dog owner, you must establish prestige and status in front of the dog. The owner is the "boss". The "boss" has all the priorities, eating first, leaving first, playing first, etc. One of the most basic ways to establish authority is to press the dog down with your hands and lie on its side when it is disobedient. Press one hand on the junction of the shoulder and the neck, and press the other hand on the side of the buttocks and the thigh. The aura should be stable. Relax. If your dog struggles and resists at the beginning, you must forcefully hold it down. Wait until the dog relaxes a little and your hand relaxes a little. Once it resists again, you apply more force, and so on until the dog still lies on the ground obediently after you take your hand away.
Toys are just like food. You, the "boss", give them to you as a reward to your employees, or you, the "boss", are in a good mood today and want to play with your employees. Instead of placing it where your dog can reach it at any time, let it have ownership and control, and wait for it to tease you when it is in a good mood.
When the dog is about to do something it "can't do", it should be stopped loudly and decisively. If you scold it later, the dog will not understand the reason and will still continue to do those "can't do" things. What's more serious is that if the dog is often reprimanded for unknown reasons, the dog will gradually develop a sense of distrust towards the owner and no longer listen to the owner's orders.
When the dog does something right or is obedient, praise it immediately so that it knows it is the right thing to do and can be recognized by the owner. Then the dog will be better behaved in the future.
Finally, if you want to have an obedient dog, the owner must be diligent in communicating, communicating and playing with it. On the one hand, this will help you understand the dog's personality, and on the other hand, it will also help the dog become more familiar with your preferences and instructions. Training will be more effective when you know each other well and are familiar with each other.