When you said you wanted the trainer to school the movements you don’t know how to do…that’s a bit of a red flag for me. It sounds as if you might think these movements are just tricks you haven’t mastered yet. In proper dressage they aren’t.
The more advanced stuff is just more refined versions of those same old boring basics (LOL) that we all work on. Whether you have 3 Olympic gold medals hanging around your neck or not. It’s all refining the basics. It is emphatically not — practising “the fancy stuff” as an isolated sort of deal. It’s all part of the same package.
It boils down the the rider sitting quietly and well and able to be a comfortable, stable package for the horse to carry, the rider understanding mentally and physically (as under your butt) the individual footfalls that make up the gaits. The right aid given at the wrong moment is still the wrong aid. It takes ages to get this stuff into your feel/brain. It’s hard.
Once you’ve got this level of feel, then you can work on actively influencing and improving your horse’s way of going. That means knowing what the legs of the horse are doing, how and when to start asking the horse to load the hind legs, engage his tummy muscles and flex his pelvis, etc, etc. It’s a long haul.
And frankly for the onlooker you aren’t going to see radical things in the early schooling process. It is baby steps that build on each other. It’s not exciting to watch (but rewarding to train). If you are expecting a trainer to get on and start riding half passes, walk pirouettes, etc, etc, then you may think the trainer is BS-ing you when she explains it’s a long road of preparation before you get there. If your horse can’t walk in a straight line, seek the bit, accept the hand, shorten his stride and lengthen his stride, do a correct circle in alignment (bloody difficult btw), then these things need to be put in place and it takes time and patience. If I saw a ton of bucking, spooking and freaking out at these baby stages, then something is wrong with either the training or the horse.
You may know all this and I apologize if I come across as lecturing, not my intent. But good dressage shouldn’t be spectacular stuff in the beginning. It should be steady, calm and quite and the horse should look and feel calm and happy in his work as it’s explained carefully to him.