Meowy Catkin
Meow!
For me it was an instructor explaining about 'setting your horse up for success'. A simple statement that really made me think about what I was doing.
Buy horses suitable for the rider you are, not the rider you wish to be.
Urghhhh head-desk moment there!! that one thing explains the difference that a a good trainer will make, over an average oneWe were doing some trot /halt transitions and I insisted the halts were square, instructor told me not to both as we weren't working on square halts, I quietly ignored her!
Pick the people you listen to carefully.
Most people have an opinion. Doesnt mean its right, or right for now.