So like a person said earlier it's never too soon to start training a dog. What I would do is start teaching the leave it command. With leave it you want the dog to not pay any mind to whatever you tell it to leave alone.
To start the training you take a piece of food (like cheese or lunch meat) and have treats on hand. Set the cheese (or whatever you use) on the ground in front of the dog. Then you keep your hand hovering over/near it so you can stop the dog from eating it.
You then make the dog sit then try removing your hand from over the food if the dog goes for it then put your hand over it quickly and say no. Keep doing it till your dog waits for even a second, as soon as your dog waits instead of trying to get the cheese say yes! And then give them a dog treat and pick up the cheese off the ground so it does not tempt them.
After you praise the dog then repeat everything again. Once you see your dog waiting for that one second reliably then increase it to 2 seconds, then 5, 10, 30, one minute, 2 min, 5 min so on so fourth till the dog leaves it indefinitely.
You can also increase the temptation over time as well. So start with little piece of cheese then when the dog leaves that for 10 minutes try a bigger piece, then move up to a piece of meat etc. But every time you increase the temptation go a step back to waiting only a second at first before rewarding. The key is to set the dog up for success and make sure its easy for the dog to succeed. If the dog seems to be getting frustrated move back a step or 2 to make it easy for it. And also make sure to end the training session with success. So end it before the dog loses interest in training. My rule of thumb is leave them wanting more.