if you know can you respond with the steps and code thanks

Assuming you're putting the script inside of the trampoline part it'd be something like this:

local trampoline = script.Parent

local debounce = false

trampoline.Touched:Connect(function(hit)
    if debounce or not hit:IsA("Player") then
        return
    end

   debounce = true

   hit:Jump()
end)