Help! I’m Potty Training My Papillon Puppy But She Doesn’t Want To Co-operate!?

I have a 8 wk old papillon puppy. I’ve had her 2 weeks. We are having a really hard time potty training her. We also have a 9 yr old papillon boy.
We have the potty pads. But she doesn’t use them. So she wears a diaper when she’s in the house to avoid accidents.
When I know she’s about to go, if I have enough time I put her outside. If I don’t have enough time, I hurry & put her on the potty pad.
We have the routine that when I wake up, I put her outside for at least 10 min. If I see her go, she gets a treat when she comes back in. When I leave for work she goes in her kennel. When I get home I take her back outside. Same as earlier. I try to take her outside alot through out the evening. When she’s not outside she wears a diaper.
If she does go in the house, she gets her nose rubbed in it, then I put her outside.
I was hoping that seeing my boy go outside would help encourage her to go out there, but doesn’t seem to do any good.
None of this has helped. Suggestions?