Is there a way to disable a script from being executed depending on a value?

I've recently come across a problem where when the player attempts to shoot a shotgun when it's still empty, reloading will not disable the debounce I've set in place in order to prevent the shotgun from firing again.

local Ammo = 2

I've set a script wide local that determines what value the ammo is.

local debounce = false

local cooldownTime = 0.7

script.Parent.Activated:Connect(function()
	if not debounce then
		debounce = true
		local shooting = game:GetService("Players").LocalPlayer.Character.Humanoid:LoadAnimation(script.Parent.Shoot)
		
		local sound = game:GetService("StarterPack").Shotgun.shooting
		
		sound:Play()
		shooting:Play()
		Ammo = Ammo - 1
		wait(cooldownTime)
		debounce = false
		if Ammo <= 0 then
			debounce = true
		elseif Ammo == 1 or Ammo == 2 then
				debounce = false
		end
	end
end)

The above script is how the player shoots the shotgun.

script.Parent.Equipped:Connect(function(mouse)
	mouse.KeyDown:Connect(function(key)
		if key:lower() == "r" or key:upper() == "R" then
			Ammo = Ammo+2
		end
	end)
end)

The script above is what I'm using to refill the ammo value.

I do believe that it has to do with the 'Ammo' variable constantly being subtracted into the negatives whenever the player shoots the shotgun. Any tips, suggestions, or help is appreciated!

I've found out my answer! In case you guys want to know how I did it, here's how:

I basically added an 'and' to my first if statement in the first section of the script determining if the ammo is less than 0.

local debounce = false

local cooldownTime = 0.7

script.Parent.Activated:Connect(function()
	if not debounce and Ammo > 0 then --//This is where I added the 'and'.
		debounce = true
		local shooting = game:GetService("Players").LocalPlayer.Character.Humanoid:LoadAnimation(script.Parent.Shoot)
		
		local sound = game:GetService("StarterPack").Shotgun.shooting
		
		sound:Play()
		shooting:Play()
		Ammo = Ammo - 1
		wait(cooldownTime)
		debounce = false
	end
end)