Me again…sorry 🙁 any advice appreciated.

So I was here with the puppy blues about a week ago and now we’ve got our red Labrador puppy who is 10 weeks on Friday. He’s hard work but honestly he’s great. He sleeps in his crate fine for naps, goes through the night bar maybe the odd accident but generally he’s awesome. He’s learnt his name, sit, wait, paw, fetch and chase. I enjoy his company but I’m doing it on my own pretty much due to me girlfriend having an appalling time with illness in her family as her sister is recovering from encephalitis and the prognosis isn’t very good, although when we ordered him she was recovering and everything was looking rosy. She doesn’t have a lot of capacity for additional stress and normally she’d be all over this but she feels like she’s checked out a little. I have ADHD and find change hard anyhow but we have really got lucky with this guy I think. My brain knows I will be so sad and upset if he goes back to breeder but even still I feel stressed and on edge with him due to the responsibility of it all and how time consuming it is. Wouldn’t have been an issue if the Mrs wasn’t back and forth to hospital. I’ve bonded with him so much and think he’s great, but it’s tough

I guess my question is, how much longer until he becomes easier and doesn’t need me for entertainment all the time?

Sorry for whining, just want to do the right thing, including if that’s going back to the breeder as getting a puppy has obviously come at totally the wrong time.