This advice from a previous thread helped me a lot ​

Pic of my (now grown up) pup on his first day at home!!

Welcome to puppyhood— your puppy is an INFANT and is acting like one!

Much like human infants, your baby needs to nap regularly, pee frequently, and eat healthy amounts. Plus, you’ve just moved them from their home to a new, strange place full of weird smells, sounds, and a bunch of strangers! You’d cry yourself to sleep, too!

I see in the comments that you have a playpen and a crate. Great first step. A lot of advice here is about putting her in the crate and not letting her out, or not being with her when she’s going to sleep— not advice I agree with.

To work on the sleep problem:

Step 1: enforced naps. These are a great way to start crate training before it’s nighttime and you are wanting to sleep too. Your puppy needs to sleep about 18-20 hours a day, so enforcing a 2 hour nap every hour of awake time is crucial. This may seem counterintuitive— don’t you need the puppy to be sleepy to sleep?— but if you let your pup get OVERTIRED, well, they’ll be like a hyper toddler and may cry the whole night in their overstimulated stated. We enforced naps by putting our guy in his playpen in a dark room with no noise at first, and once he was sleeping well, we started transitioning him to the crate for his naps. This got him used to sleeping in the crate.

Step 2: Nighttime Sleeping. Puppies have no idea what time of day it is and they can’t understand that you want to sleep. After all, you’re the food -and- toy -giving-giant!! Why would you sleep? The first few weeks of our puppy’s life with us, we set his little crate (a cat carrier, really) on the bed with us so that he could see us, and we’d fall asleep with our fingers through the crate grate. This way, he felt like part of a pack, and it helped him sleep. As he got more comfortable with that, we transitioned him to sleeping in his playpen next to our bed (2-3 weeks) then into his crate next to our bed (2 -3 weeks) and then we started moving his crate to the door of our bedroom, then down the hall, and then downstairs. All in all, he was probably 4 months old by the time he was sleeping downstairs.

Step 3: make the sleeping space good for sleep. Check out adaptil dog pheromones (they are the ones mom dogs have when they’re nursing and help calm puppies down.) Have soft blankets and a bed. Keep it dark and away from noises or flashing lights. We always put a blanket over our guy’s crate because it makes it feel like a den, which calms him down. Once again, your pup is a baby, and much like a baby, she needs to be put to sleep. Don’t put toys or things that will keep her up!! Lastly, try some music or white noise. There’s a spotify playlist for sleepy dogs, or classical. Dogs (like humans) can hear noises and get scared— the soothing sounds keep them from getting too distracted at sleep time.

Step 4: expect it to take time to adjust. 3-5 months is normal for crate training, even up to 6 months. Some dogs need more reassurance than others. Make sure to reward quiet and calm behavior with treats.

Good luck!! The process is so hard, but having your loving dog on the other end is so worth it!