For goodness sake, he's ten months, not ten years. And he's a fairly large breed; the larger, the slower to develop; so what he's doing is natural. I have an 11 month old wolfhound here. He has two other wolfhounds, all the time, and six smaller dogs for company. I am almost never out in the day, and then only for an hour.
And what does he do? He empties plant pots, chews everything and anything he fancies, from pipes for the washing machine to lawn mowers, and fetches anything and everything he can carry into, or out of, the house. The older two were the same, except one tried to eat the staircase, and their predecessors were worse. They once demolished a three piece suite, and, as an encore, ran through the glass doors between rooms when they were shut.
You have to learn to live with it. You can give him toys and distractions and be with him all day, but you have to watch him like a hawk because he'll be up to mischief.