I did, for a year or so after a bad fall. I hated horses at the time and was terrified. But about 2 weeks of lovely lie-ins and do what I want evenings I was missing it like crazy. I have friends who thought the same.
I think that if you do horses, you'll always do horses - whether you give...
As long as all happy and healthy yes! make sure you either bring them in, or get someone to hold them as you check them over daily and re-arrange or put on rugs!
Try working him on a 10m circle and asking for transitions on them. If he can't do that work up to a bigger circle but avoid corners in your circle. For instance, circle at C but miss the B (or E) corner and go out to X then miss the E (or B) corner so it turns into more of an oval.
To conquer...
It's time to introduce something new to my 7yo's showjumping training! She's perfect at grids - in fact they're her favorite thing to do, and she literally has wings (my choice of explanation is a simple - 'She's a Connie' to which people usually say 'Ohhhhh, makes sense'.)
Recently my trainer...