Ms Leahey said her charity, which also set up a response hub following the Southport riots last year, was ready to go just three hours after the Liverpool FC parade incident and was contacted by somebody asking for help later that evening.
"It took us a week last time to get everything set up, and because we had a blueprint based on that, we were able to bring that back out and we had the resources," she explained.
"We knew what tools to bring in to keep young people safe and how to get that info out into a child's larger support network and make sure they were fully supported."
Ms Leahey said the Be Free Campaign was still having to "fight against the narrative" that only those who were physically injured needed support.
"The hurt may not be physical but it is still so real," she said.
"It's all about making sure they're able to discuss when they don't feel great and getting into the habit of talking about things and accessing support when it's needed.
"That kind of anxiety can easily spiral and manifest into something even more serious, but it doesn't have to."