How to make the attack strength equal to the time of punching?

my punch cooldown is working but my damage script is also spam damage while punch cooldown still stop playing

here my punch cooldown code

local player = game.Players.LocalPlayer
local db = true
local db2 = false
local damage = false

local anim = Instance.new("Animation")
anim.AnimationId = "http://www.roblox.com/asset?id=3582012915"

game.Players.LocalPlayer.Character:WaitForChild("RightHand").Touched:Connect(function(hit)
    if hit.Parent:FindFirstChild("Humanoid") and db2 and not damage and hit.Parent.Humanoid ~= game.Players.LocalPlayer.Character.Humanoid then
        if game.Players.LocalPlayer.Character.Humanoid.Health > 0 then
            game.ReplicatedStorage.Punch:FireServer(hit.Parent.Humanoid)
        end
    end
end)

game:GetService("UserInputService").InputBegan:Connect(function(input, event)
    if input.UserInputType == Enum.UserInputType.MouseButton1 and db then
        db = false
    db2 = true
    wait(.5)
    db2 = false
        local playAnim = game.Players.LocalPlayer.Character:WaitForChild("Humanoid"):loadAnimation(anim)
        playAnim:Play()
        wait(0.5)
        damage = false
        db = true


    end
end)

and code of damage script

game.Players.PlayerAdded:Connect(function(player)
    player.CharacterAdded:Connect(function(char)
        local sound = game.ServerStorage.Punch:Clone()
        sound.Parent = char:WaitForChild("Head")
    end)
end)


game.ReplicatedStorage.Punch.OnServerEvent:Connect(function(player, humanoid)
    if humanoid.Health >= 10 then
        humanoid.Health = humanoid.Health - 10
    elseif humanoid.Health < 10 then
        humanoid.Health = 0
    end

    player.Character.Head.Punch:Play()
    wait(0.5)
end)

Please Help And Thanks You.