Damage Can Be Spammed, and I Can't Figure Out Why?

So basically whenever you hit the player you can keep on clicking the weapon which deals damage, I want it so you can only deal the damage 1 time if the weapon is activated?

Any Ideas Why My Script Is Doing This?

server script in Tool

Av = script.Parent.DamageValue.Value --Attack Value 
local CanDamage = script.Parent.CanDamage
tool = script.Parent

function tagHumanoid(humanoid,killer)

    if humanoid and killer then

        local tag = Instance.new("ObjectValue")
        tag.Name = "Killer"
        tag.Value = killer
        tag.Parent = humanoid
    end

end

script.Parent.Activated:Connect(function()

    CanDamage.Value = true

    if script.Parent.Handle.Touched then

        script.Parent.Handle.Touched:Connect(function(p)

    local plr = game.Players:GetPlayerFromCharacter(tool.Parent)

    if script.Parent.CanDamage.Value == true and p.Parent:FindFirstChild("Humanoid") then

    script.Parent.CanDamage.Value = false

    local humanoid = p.Parent:FindFirstChild("Humanoid")

    humanoid:TakeDamage(Av)

    tagHumanoid(humanoid, plr)

    wait(.2)

    script.Parent.CanDamage.Value = true

    if p.Parent.Humanoid.Health < 1 then
        print("Player Has Died")
    end

    end
        end)
        end
end)