Motivation is the second component in improving how we see things. If you believe you will be successful, you can be. Without that passion, it's easy to give up. All the great hunters, fishermen, photographers and birders I know are successful because of desire. With desire comes effort and success, hence positive experiences that hone one's talents to a higher level.
Expectations are the most powerful influence on why people have difficulty seeing wildlife.
We tend to focus our attention on where we think animals will be. Believe me, it is seldom like that. In the real world, animals are intuitively wary, employing their natural camouflage to stay concealed. If you want to improve your ability to see, focus on areas where the animals are hardest to see. If an animal is in an obvious place, you'll easily see it.