Where do I move the debounce lines? The debounce is not working.

debounce should be at the very start of the function.

local debounce = true
local number = 1

function onMouseButton1Click()
    if debounce == false then return end
    debounce=true
    for i=0, 1, 0.03125 do
        if number == 1 then
            script.Parent.TextButton.BackgroundTransparency = i
            script.Parent.TextButton.TextTransparency = i
            script.Parent.TextLabel.TextTransparency = i
            wait(0.03125)
        elseif number == 2 then
            script.Parent:Destroy()
        elseif number == 3 then
            number = 0
        end
    end
    number = number + 1
    debounce=false
end

script.Parent.TextButton.MouseButton1Click:connect(onMouseButton1Click)