This chap has had such a rough time - he's now come down with grass sickness and is being PTS in the morning :( That's two horses of mine in a month who have come down with it :(
I've found sharp horses need leg on, and dull horses need leg off. I'd do what others have said and if she wants to speed up, make her but on your terms - if she tries to slow, then ask her to continue. I've never had this problem ridden but have when lunging. You need nerves of steel...
I establish canter on hacks in straight lines before asking for it in the school. Once in the school I only ask on the long side and trot again before the horse becomes unbalanced. Once balanced in the school on a straight line I would start cantering on the lunge without a rider, then with...
What you are doing isn't treating it is bribing. The reward should come after the act, not before. You make faster progress rewarding afterwards because your horse will be trying to work out what it needs to do to get the treat. If it is coming anyway, there is no need for them to try.
I take a deep breath out and hum to them (you can do this if they are spooky in the dressage test and the judge wont know ;) ). Relaxing yourself will usually relax them - the more you worry about them reacting, the worse they will get.
A good example is my stallion yesterday - my instructor...
Someone offered me £4.5k for my pony as a 6yo - at the time I said no way! However in the past two years my riding has improved and I have outgrown her to some degree. I have recently sold her for £4.5k on recommendation of a home. I don't think I could have bared to advertise her but the home...
After how much I got for my mare, I'm going to concentrate less on getting a horse competition ready before sale, and more on getting them used to everything and riding out perfectly. As well as being easier to sell, they also seem to fetch a higher price (unless those competing are amazing)
I've just sold my 14h2 bombproof mare who will pop a jump and do a dressage test for £4500. People will pay for bombproof - they're a rare find and usually go via word of mouth like mine did.
Do not go to citizens advice! They are not lawyers and will give advice based on their own interpretation (and won't understand anything equine). Contact a specialist equine solicitor and use the free half hour of legal advice you are entitled to. Check with your house insurance - you may be...