@roguecoyote I am so pleased you are in contact with Debbie - no better person than Rogue's breeder to help you through the initial hard spots. And don't worry, I'm sure you won't lose the Forum as a resource when you need advice.
I pick up Kito when anyone leaves the garden - because of Lockdown they can't come into the house but he has a tendency to follow them to the gate and would love to slip out between their legs. Just pick Rogue up and give her as extra cuddle.
Sit-stays are very useful and so is re-call. Just make all the training FUN for Rogue and she will pick things up in no time.
Putting a jacket or a sweater on her is good too. My adults all had Barbour Jackets made for them from off-cuts of a jacket a friend made for her husband. She will feel the cold badly, but as you so wisely say - warm weather is on its way. Just remember she is a baby yet and don't overdo the outdoors bit until she is bigger.
I have a sling for Kito. Mku used it too. It goes over my shoulders and the puppy is attached to the inside of it by the collar so it can't fall (or clamber !) out. The pouch the pup rides in has a drawstring so you can close it for extra security. The puppy rides in that on our walks in the woods. I can't deprive Mku of his daily squirrel hunt and all sort of people stop and admire Kito, riding in his sling. It all helps to socialise him and he sees lots of other strange shaped critters - dogs AND horses along with squirrels.
Good luck !