how do you change the text size?

Hope this helps! i think the problem was either debounce or the textscaled value was true

local debounce = false
script.Parent.MouseEnter:Connect(function()
    if not debounce then
        debounce = true
        -- code here
        -- this is testing code V
        script.Parent.TextSize = 100
        script.Parent.TextScaled = false
        wait(0.5)
        debounce = false
    end

end)

local debounce = false
script.Parent.MouseLeave:Connect(function()
    if not debounce then
        debounce = true
        -- code here
        -- this is testing code V
        script.Parent.TextSize = 20
        script.Parent.TextScaled = false
        wait(0.5)
        debounce = false
    end

end)

dont remove the debounce as that will bug it out