Need Help Making Blocking and Parrying

[MR_M3WTWO (Mew)]

So I am trying to make a sword system and I can’t quite figure out how to add Blocking and Parrying. Here is my code:

Sword Script:

r = game:service("RunService")

local damage = 0

sword = script.Parent.Handle
Tool = script.Parent

local damages,values,sounds = {10,11,12},{Tool.PlaySlash,Tool.PlayThrust,Tool.PlayOverhead},{Tool.Handle.SlashSound,Tool.Handle.OverheadSound,Tool.Handle.LungeSound}
local enabledToDamage = true

function blow(hit)
	if enabledToDamage == false then return end
	enabledToDamage = false
	if (hit.Parent == nil) then enabledToDamage = true return end -- happens when bullet hits sword
	local humanoid = hit.Parent:findFirstChild("Humanoid")
	local vCharacter = Tool.Parent
	local vPlayer = game.Players:playerFromCharacter(vCharacter)
	local hum = vCharacter:findFirstChild("Humanoid") -- non-nil if tool held by a character
	if humanoid~=nil and humanoid ~= hum and hum ~= nil then
		-- final check, make sure sword is in-hand
		local right_arm = vCharacter:FindFirstChild("Right Arm")
		if (right_arm ~= nil) then
			local joint = right_arm:FindFirstChild("RightGrip")
			if (joint ~= nil and (joint.Part0 == sword or joint.Part1 == sword)) then
				tagHumanoid(humanoid, vPlayer)
				humanoid:TakeDamage(damage)
				wait(1)
				untagHumanoid(humanoid)
			else
				enabledToDamage = true
			end
		else
			enabledToDamage = true
		end
	else
		enabledToDamage = true
	end
end

function tagHumanoid(humanoid, player)
	local creator_tag = Instance.new("ObjectValue")
	creator_tag.Value = player
	creator_tag.Name = "creator"
	creator_tag.Parent = humanoid
end

function untagHumanoid(humanoid)
	if humanoid ~= nil then
		local tag = humanoid:findFirstChild("creator")
		if tag ~= nil then
			tag.Parent = nil
		end
	end
end


function attack()
	damage = slash_damage
	script.Parent.Handle.SlashSound:Play()
	script.Parent.PlaySlash.Value = not script.Parent.PlaySlash.Value 
end

function lunge()
	damage = lunge_damage
	script.Parent.Handle.LungeSound:Play()
	script.Parent.PlayOverhead.Value = not script.Parent.PlayOverhead.Value 
	force = Instance.new("BodyVelocity")
	force.velocity = Vector3.new(0,10,0) --Tool.Parent.Torso.CFrame.lookVector * 80
	force.Parent = Tool.Parent.Torso
	wait(.5)
	force.Parent = nil
	wait(.5)
	damage = slash_damage
end


Tool.Enabled = true
local last_attack = 0
local status = 0

function onActivated()
	if not Tool.Enabled then
		return
	end
	Tool.Enabled = false
	local character = Tool.Parent;
	local humanoid = character.Humanoid
	if humanoid == nil then
		print("Humanoid not found")
		return 
	end
	t = r.Stepped:wait()
	if (t - last_attack < 1.5) then
		if status == 3 then
			status = 0
			damage = 0
		else
			status = status + 1
			values[status].Value = not values[status].Value
			damage = damages[status]
			sounds[status]:Play()
			enabledToDamage = true
			wait(0.5)
			enabledToDamage = false
		end
	else
		status = 0
		damage = 0
	end
	last_attack = t
	Tool.Enabled = true
end

function onEquipped()
	wait(1/3)
	Tool.Handle.UnsheathSound:Play()
end

Tool.Equipped:connect(onEquipped)
script.Parent.Activated:connect(onActivated)
connection = sword.Touched:connect(blow) 

Animation Script:

-- Waits for the child of the specified parent
local function WaitForChild(parent, childName)
	while not parent:FindFirstChild(childName) do parent.ChildAdded:wait() end
	return parent[childName]
end

local Tool = script.Parent
local sword = Tool:WaitForChild("Handle")
local trail = sword:WaitForChild("Trail")
local HitSounds = "rbxassetid://566593606"
trail.Enabled = false

local Animations = {}
local MyHumanoid
local MyCharacter


local function PlayAnimation(animationName)
	if Animations[animationName] then
		Animations[animationName]:Play()
	end
end

local function StopAnimation(animationName)
	if Animations[animationName] then
		Animations[animationName]:Stop()
	end
end


function OnEquipped(mouse)
	MyCharacter = Tool.Parent
	MyHumanoid = WaitForChild(MyCharacter, 'Humanoid')
	if MyHumanoid then
		Animations['EquipAnim'] = MyHumanoid:LoadAnimation(WaitForChild(Tool, 'EquipAnim5'))
		Animations['IdleAnim'] = MyHumanoid:LoadAnimation(WaitForChild(Tool, 'IdleAnim3'))
		Animations['OverheadAnim'] = MyHumanoid:LoadAnimation(WaitForChild(Tool, 'OverheadAnim2'))
		Animations['SlashAnim'] = MyHumanoid:LoadAnimation(WaitForChild(Tool, 'SlashAnim2'))
		Animations['ThrustAnim'] = MyHumanoid:LoadAnimation(WaitForChild(Tool, 'ThrustAnim2'))
		Animations['UnequipAnim'] = MyHumanoid:LoadAnimation(WaitForChild(Tool, 'UnequipAnim2'))
	end
	PlayAnimation('EquipAnim')
	PlayAnimation('IdleAnim')
end

function OnUnequipped()
	for animName, _ in pairs(Animations) do
		StopAnimation(animName)
	end
end

Tool.Equipped:connect(OnEquipped)
Tool.Unequipped:connect(OnUnequipped)

WaitForChild(Tool, 'PlaySlash').Changed:connect(
	function (value)
		--if value then
			trail.Enabled = true
			
			PlayAnimation('SlashAnim')
			wait(.5)
			trail.Enabled = false
		--else
		--	StopAnimation('SlashAnim')
		--end
	end)

WaitForChild(Tool, 'PlayThrust').Changed:connect(
	function (value)
		--if value then
	trail.Enabled = true
			PlayAnimation('ThrustAnim')
	wait(.5)
	trail.Enabled = false
		--else
		--	StopAnimation('ThrustAnim')
		--end
	end)

WaitForChild(Tool, 'PlayOverhead').Changed:connect(
	function (value)
		--if value then
	trail.Enabled = true
			PlayAnimation('OverheadAnim')
	wait(.5)
	trail.Enabled = false
		--else
		--	StopAnimation('OverheadAnim')
		--end
	end)

The game is R6. If anyone can add anything to my scripts it would be a huge help. Thank you!