Morgan Stear, 16, from Elsecar, was officially given the title of Civic Young Mayor back in October before the pandemic halted her plans.
Morgan, who is currently studying at Barnsley College, vowed that during term time she will focus on campaigns relating to mental health and the impact of bullying.
She said: “I’m excited to get going in a bigger role and to represent my fellow youth councillors and the young people of Barnsley.”
Over her years as a youth councillor, she has been an advocate for promoting the national ‘Make Your Mark’ campaign, ensuring that young people have their voices heard.
She has also helped develop regional campaigns on hate crime, protecting the environment and transport.
Coun Margaret Bruff, cabinet spokesperson for children, added: “Barnsley Youth Council has done some amazing work in the past years.
“It’s crucial to ensure that young people across Barnsley have the opportunity to voice their opinion and have their say on issues that matters to them.”