Your goals determine the challenges you face and the skills you need to succeed. This is especially true if you make your specific assignments difficult enough to match your current skills and drive level. Next, throw yourself into the work with zest, immerse yourself in the activity. Keep the difficulty of the work at a level that stretches your ability and skills. Develop your ability to concentrate on the task at hand.
Concentrated attention leads to thorough involvement.
A great athlete must concentrate, just as a good reader or a good listener must. You become so involved that you do not attend to the external world beyond your task and, therefore, you are not self-conscious. You will appreciate a song bird, watching children play, walking in a park, etc. But the final result of being so efficient and productive will be creative achievement. If so, it should not take long to see the logic of trying out another mental attitude.