Sentence examples for fear of not from inspiring English sources

The phrase "fear of not" is correct and usable in written English.
It is typically used to express anxiety or concern about not being able to do or achieve something. Examples: 1. Sarah's fear of not getting into her dream university motivated her to study harder than ever before. 2. The fear of not being able to pay the bills kept John up at night. 3. Despite her fear of not being good enough, Maria mustered the courage to audition for the lead role in the play. 4. Mark's fear of not succeeding in his new job made him work tirelessly to prove his skills. 5. The fear of not finding true love has caused many people to settle for less than they deserve.