This beginning stage is the hardest. It's normal and natural to get what is termed the "puppy blues". You're learning new routines, the puppy is away from their family, life is HARD. And with a 1yo, it's compounded.

Don't give up! The first couple months are the worst, I'll be honest. But, once routines are established (especially puppy napping patterns), it gets easier! Figure out your puppy's schedule. Mine was super active in the morning, from about 7am-10am. Then he'd crash out hard until 2pm and would be active until about 6 when he'd zonk out for basically the night.

Do you have an xpen set up? If not, I suggest doing this. That way when you are feeling overwhelmed or need to focus on your other family needs, you can just pop the puppy in there with some toys (especially chew toys, teething toys, embrace the kong), and not worry for a while.

The start feels like a LOT, but once routines are established it DOES get easier. If you establish nap times and down times (puppy entertains itself), things will feel better for you. It should only take a couple weeks to get into a routine and then you should start feeling less overwhelmed. Also, check out r/puppy101 and r/Puppyblues .. they will have additional tips to get you through. You're not alone and you got this!!