Self Reset system will not work at all, can you help?

I have a cash register that resets itself every five seconds (it has a duplicate of itself in server storage) for some reason i wait 5 seconds and it doesnt reset, why?

local ReplicatedStorage = game:GetService("ReplicatedStorage")

local Self = ReplicatedStorage:FindFirstChild("Cash Register1")

while true do
    wait(5)
local clone = Self:Clone()
    clone.Parent = game.Workspace

    script.Parent:Destroy()
end