How can I help my puppy?

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My pup is 9weeks old and we just got her yesterday. Well she gets major anxiety when she gets put in her pin at night. It the only way to ensure her safety at night because she’s very curious. She howls and cries, loudly. I’ve put a stuffed puppy and a chew toy and a puppy pad (she’s paid trained) just Incase she has to go before I get up to get her. She also has a tiny blankie. She wants to lay next to me and sleep but she is so tiny that I’m afraid to let her sleep with me. What can I do to help her stay calm at night?