My Dc is very academically capable, but a bit lazy (would rather be playing video games than much else!). He's really reluctant to do any 11+ practice outside of his tutoring & today got really stressed out when we tried to encourage him.
It's crossed my mind to just withdraw him from the 11+ if it's going to cause all this upset. But on the other hand I think he's bright enough to manage grammar school and it may open doors to different opportunities.
We've tried to organise lots of holiday treats, so it's not just 11+ practice each day (if we can convince him to do it). We've also tried to encourage meeting up with friends, but apparently they mainly talk about the 11+ (& how well they're getting on with practice tests) when they get together 
I keep telling myself it's only a month to go, but I'm starting to think it's not worth it.