Reality? How many times has a poor fitting bike or a sales job had you not living up to you're expectations?
Now is the time to get the head right. Get the bike correct, then focus on the correct moves. The challenge is to focus on reality or things that really make a difference in the expectations e.g. each stroke.
Any one who plays a sport at any level will tell you, the hardest thing in that game is repeat the best move. Without knowing it, many make the mistake that more is better. They take prior knowledge (memory) old bike fit and attempt to add to the output e.g. a golfer who hits the perfect ball, wants to hit it harder and the results suffer.
No human can hit the golf ball perfect over and over, place the hammer on the nail perfect every time. The same holds true for the pedal stroke. There is a lot of noise (outside sensations) e.g. beliefs that retards the process.
If you don't know your precise measurements (facts) e.g. cleat constraints and belief it, you provide a weaker pedal stroke.
Every golfer addresses the golf ball first or suffer the results. You need to know what you want to do, more important practice it.
The best sales job on how someone else does it is not good enough. If you can't reach the ball with the club in hand, the so called best move in the world will not make a difference. Your commands are for you're needs, not someone else and you have to learn them.
The brain is the key to all movement and if it has doubt, it is weaker.
When you have a closer (data) approximation to the solution of a problem, you have a better chance of repetition.
Even with the correct bike setup, you still have to have the sensory input, the belief (feedback) that allow optimal output.
Put it simply, our predictions come from truthful measurements, facts, that allow you to practice better. Expectations then come forth!
That's just the way it is!