How do I stop a "While true do"? Any help?

Script:

local m = game.Players.LocalPlayer.leaderstats.Experience.Value

while true do
script.Parent:Clone().Parent = script.Parent.Parent
wait(3)
if m >= 5 then 
	script:Destroy()
end
end

The :Destroy() thing doesn't work, so how do I stop it when m is greater or equal than 5. It would be nice if you would give me the code with your answer if you have one.

To stop a while true do, you should use break

while true do
    script.Parent:Clone().Parent = script.Parent.Parent
    wait(3)
    if m>=5 then
        break
    end
end

I honestly never have tried doing this, so, I apologize greatly if it doesn't work.

local SomethingIsWrong = true

while true do
print("Something")
if SomethingIsWrong then
break 
  end
end

instead of doing "while true" do something like this..

local running = true

while running do
	script.Parent:Clone().Parent = script.Parent.Parent
	wait(3)
	if m > 5 then
		running = false
	end
end

Also your problem could be that you are cloning the script and each script is cloning itself. So maybe try not to clone the scripts.