Health bar local script not working?

In my local script for a health bar I have, it seems to not be moving at all with the current code I have.

Here is the script:

local player = game.Players.LocalPlayer
local character = player.Character or player.CharacterAdded:Wait() or workspace:WaitForChild(player.Name)
local humanoid = character:WaitForChild("Humanoid")

humanoid.HealthChanged:Connect(function(health)
    script.Parent.Bar.Size = UDim2.new(health / humanoid.MaxHealth, 0, 1, 0)

    if humanoid.Health / humanoid.MaxHealth > script.Parent.Damage.Size.X.Scale then
        script.Parent.Damage.Size = UDim2.new(health / humanoid.MaxHealth, 0, 1, 0)
    else
        script.Parent.Damage:TweenSize(UDim2.new(health / humanoid.MaxHealth, 0, 1, 0), nil, Enum.EasingStyle.Linear, 0.5, true)
    end
end)

player:WaitForChild("CombatTags").ChildAdded:Connect(function()
    local cnum = #player.CombatTags:GetChildren()

    if cnum == 0 then
        script.Parent.Hint.Visible = false
    else
        script.Parent.Hint.Visible = true
    end
end)

player:WaitForChild("CombatTags").ChildRemoved:Connect(function()
    local cnum = #player.CombatTags:GetChildren()

    if cnum == 0 then
        script.Parent.Hint.Visible = false
    else
        script.Parent.Hint.Visible = true
    end
end)

I have talked with serveral friends on this secetion of code and they as well see nothing wrong with it.