However in sports like sprinting or power lifting, where explosive activity is required, adrenaline may be useful in generating optimum performance. You may currently view high levels of adrenaline in your body negatively as stress. You may need to review this, perhaps welcoming adrenaline as an aid to your performance. Similarly you might like to consider using 'Psych Up' routines to raise your adrenaline levels if you are not sufficiently aroused. Anxiety Anxiety is different from stress.
Anxiety comes from a concern over lack of control over circumstances.
In some cases being anxious and worrying over a problem may generate a solution. Normally, however, it will just result in negative thinking. The desire always to have the love and admiration of all people important to you. The desire to always be thoroughly competent. This is unrealistic because you only achieve competence at a new level by making mistakes.