u/Cinnamonistrouble

Hello. I have a 8 month old puppy. He's a male Golden Retriever. Ever since we got him he had a habit of biting and scratching but lately it's gotten very bad. He has been destroying the furniture and has completely ripped apart half of the bed that we sleep on. Help. How do I stop this. He also bites ankles and feet when he wants my slippers, need that to stop too.