I posted in Eventing as well, but it would be a disservice to ignore the great advice of other dressage riders on this forum.
I have a young green horse at home, we see an instructor monthly when she is able to visit the facility. Horse is W/T/C, we have been working on contact and he goes super at W/T but at the canter will lose connection and go above the bit. He knows leg yields and the turn on haunches and forehand but no lateral movements yet. Laterals are something I want to save for working with my trainer on to make sure my timing is 100%.
I would love some tips on helping me help my guy. He has a very big canter and tends to get strung out and flat, and if left uncorrected will dirtbike in one direction around the steep side of our arena. Our arena is actually an unused pasture, it is not super flat. He does not rush, but his stride is very long and I have a hard time getting him to condense his stride in a way he understands. He is still very green and is learning half-halts, we only just started cantering in October but stopped once it started to snow as we do not have an indoor. I have been doing small sequences of canter between four to five strides and bringing him back to a trot, but this gets repetitive and he starts to anticipate the transitions. If I condense too much he breaks to a trot. I know part of it will get better once he strengthens up. This seems like a balance issue, both his and mine, as I tend to want to lean forward and get out of his face when I know he needs my support every stride.