Training litter mates

I took in 3 littermates about 5 days ago. They’re about 8 weeks old now, chihuahua x dachshund mixes. 2 girls, 1 boy.

The original owners didn’t expect a litter from their 1.5 & 2 year olds. The father is now neutered and they will spay the mom soon. They couldn’t keep all the dogs in their apartment, but they wanted to keep the siblings together.

I was told about the situation and, here we are now. I have plenty of room for them. I own a house with spaces to dedicate to them and so much yard space.

I work from home, so am trying to figure out this new balance for the household.

I raised 2 litter mates before, in my original pack of 5. My old ladies are now on the rainbow bridge. They were very gentle, quiet and overall calm girls.

I still have two older dogs: 10 yr old chihuahua x staffy , and a 6 yr old pit. The pit has taken to “supervising” them and barking when the boy bites the others too hard. She’s very sweet, playful and careful stepping around them. We think she sees herself as a mama.

The ChixStaffy does not care for them – he’s a bit jealous right now but he’s still getting lots of cuddles and attention. He keeps his stance and only engages in playing with the shorthaired girl (fo 2-3min tops)

So the puppies ::

The long haired girl is the most alert, independent and behaved. Listens to commands easily and sits by me for direction.

The shorthaired girl is the quieter of the three and most timid. She’s picking up on commands.

The BOY, is also picking up commands but is the most rebellious of the three.

He wakes up crying and barking. So I still move around in the morning for a few minutes to ready myself, and wait for a quiet moment to then let him out. He then whines often through the day.

He bite the other pups too hard. I’ve noticed he sometimes tries to hop and bite his sisters when I praise them and give them attention.

Or for play time, he gets carried away and bites too hard.

When he sees the older dogs in the morning, he excitedly approaches them but then stays nipping at their legs. He got their cheeks on his second day and they shoved him off well with a deep bark. Now they keep their distance for the most part.

– but I really want to understand how to train him and his particular behavior.

I have separate crates for each of them. They have independent training, group training, independent playtime, and of course have group play.

I’m still figuring out a routine outline.

Right now, I feel overwhelmed and unstructured.

I feel like I messed up having potty pads inside the house for the first 3 days. My mother’s been recovering from surgery so placed those to help with any moments I couldn’t focus on them. Yesterday I removed all pads to train them only to go outside and signal – but this far they’re going randomly around the house and don’t make it out the door on time.

Any advice for a schedule and training is appreciated!