Player still dies even after HumanoidStateType Dead is set to false. Why?

Cutting to the chase:

My game is meant to have a gui for when you "die" (Which is depicted as DOWNED in the game), Your character doesn't die, instead, it just stays completely frozen on the ground, with a Gui allowing you to go back to the spawn, respawn or get back up.

The issue I'm having is that, when you reset character, the DOWNING works, but when players kill you with bullets in the PVP areas of the game, your character WILL die, the DOWN gui appears, but your character breaks and dies.

What I speculate is that the script gets you hurt OVER 0 HP, Therefore, it makes the game go crazy and kill you anyways.

This is the script for the bullet's damage, which is on each bullet's script.

damage = false
loops = 0
local TotalDamage = 15
Players = game:GetService("Players")


script.Parent.Touched:Connect(function(damaged)
	local Playermanboi = Players:GetPlayerFromCharacter(damaged.Parent)
	
	if damage == false then
	local Humanoid = damaged.Parent:FindFirstChild("Humanoid")
	if Humanoid == nil then return end
	if damaged.Parent.Name == script.Parent.Name then return end
	damage = true

		if damaged.Name == "Shield" then
			TotalDamage = TotalDamage / 3
		end
			if damaged.Name == "HumanoidRootPart" then return end
	Humanoid.Health = Humanoid.Health - TotalDamage
	wait(2)
	damage = false
	end
end)

And this is the script for the HumanoidStateType set to false, which is on StarterPlayerScripts

Plr = game.Players.LocalPlayer

Plr.CharacterAdded:Connect(function(char)
        local Hum = char:WaitForChild("Humanoid")
        Hum:SetStateEnabled(Enum.HumanoidStateType.Dead, false)
        local DeathAnim = Hum:LoadAnimation(char.Defeat)

        Hum.HealthChanged:Connect(function()
                if Hum.Health <= 0 then
                    DeathAnim:Play()
					Hum.WalkSpeed = 0
					Plr.PlayerGui.DownedGui.Enabled = true
 					Hum.HealthChanged:Connect(function()
	
					if Hum.Health > 0 then
					DeathAnim:Stop()
					DeathAnim:Destroy()
					Hum.WalkSpeed = 16
					end
						end)
                end
            end)
end)