You're not alone
Youth
Anxiety can negatively affect cognitive performance by impairing attentional control
Studies have found a statistically significant association between high levels of self-reported anxiety and poorer academic performance among students aged 8–16
There is a direct link showing how anxiety negatively effects brain structure in adolescence

The National Survey of Children’s Health (NSCH)
Anxiety numbers for children in the United States
There's been a 160.75% increase in diagnosed anxiety
Adults
40+ Million adults in the US experience anxiety
12 Billion days lost in work because of anxiety
The American Institute of Stress reports that job stress costs U.S. employers more than $300 billion annually due to absenteeism, turnover, decreased productivity and direct medical, legal and insurance costs.
The WHO estimates depression and anxiety cost the global economy $1 trillion annually in lost productivity.