How do I make an animation activate if player is AFK?

I'm trying to get my "idle" animation to only be activated if the player has not moved for 40 consecutive seconds. I've only managed to get the animation to play after 20 seconds if the player isn't moving by the 20th second, but this isn't really what I want:

-- This local script doesn't work correctly. It's meant to be an AFK animation, --
-- as in when the player has been idle without moving their mouse for 20 seconds, --
-- then the animation will play until the player moves their chacter --

local Player = game.Players.LocalPlayer
local Humanoid = Player.Character.Humanoid
local mouse = Player:GetMouse()
local animate = Instance.new("Animation")
animate.Name = "animate"
animate.AnimationId = "http://www.roblox.com/Asset?ID=2056648365"

debounce = false

mouse.Idle:connect(function(Idle)
if debounce == true then return end
debounce = true 

wait(9)

repeat wait() until Player.Character.HumanoidRootPart.Velocity == Vector3.new(0,0,0) == true do
print 'idle start'
        wait(1)
        if Player.Character.HumanoidRootPart.Velocity == Vector3.new(0,0,0) == false then return
            elseif Player.Character.HumanoidRootPart.Velocity == Vector3.new(0,0,0) == true then
        print 'Idle'
        script.Parent.Folder.IdleWallEvent:FireServer(Player) end
        local playAnimate = Humanoid:LoadAnimation(animate)
        playAnimate:Play()
    repeat wait() until Player.Character.HumanoidRootPart.Velocity == Vector3.new(1,1,1) == false do return end
        if Player.Character.HumanoidRootPart.Velocity == Vector3.new(1,1,1) then
        playAnimate:Stop()
        wait(0.01)
        print 'Idle Deactivated'
        end

        debounce = false
    end
end)

I then decided to use a script to insert my animation into the player, in hopes that I could make the animations play in an order. However, this was unsuccessful as well. I was trying to make it to where my custom animation wouldn't play unless the player had been idle for 20 seconds using weighting:

local Player = game.Players.LocalPlayer
local mouse = Player:GetMouse()
local Idle = Instance.new("Animation")
Idle.Name = "Idle"
Idle.AnimationId = "http://www.roblox.com/Asset?ID=2056648365"

Idle.Parent = Player.Character.Animate.idle

local Weight = Instance.new("NumberValue")
Weight.Name = "Weight"
Weight.Parent = Player.Character.Animate.idle.Idle
Weight.Value = 2

local OtherWeight = Player.Character.Animate.idle.Animation1.Weight
OtherWeight.Value = 4

local OtherOtherWeight = Player.Character.Animate.idle.Animation2.Weight
OtherOtherWeight.Value = 3

repeat wait(0.1) until Player.Character.LowerTorso.Orientation == Player.Character.HumanoidRootPart.Orientation + Vector3.new(10.38,0,0) do
print 'idle start'
        wait(1)
        if Player.Character.LowerTorso.Orientation == Player.Character.HumanoidRootPart.Orientation + Vector3.new(10.38,0,0) == false then return
            elseif Player.Character.LowerTorso.Orientation == Player.Character.HumanoidRootPart.Orientation + Vector3.new(10.38,0,0) == true then
        print 'Idle'
        wait(0.01)
        script.Parent.Folder.IdleWallEvent:FireServer(Player)
    end
end

And here's the function:

local Wall
local success, err = pcall(function()
  Wall = game:GetService("InsertService"):LoadAsset(2096107433)
end)
if success then
  Wall.Parent = workspace
  print("successfully inserted Wall")
else
  warn("unable to insert Wall because " .. err)
end
local Player = game.Players.LocalPlayer
local wall = game.Workspace.Model.SmoothBlockModel
    wall.CanCollide = false
    wall.Anchored = true
    wall.Transparency = 0
    wait(0.1)
    wall.Orientation = Player.Character.HumanoidRootPart.Orientation
    wall.Position = Player.Character.LowerTorso.Position + Vector3.new(-0.051, 5.548, 2.177)
    wall.Transparency = 0

    local yes = Instance.new("Part")
    yes.Name = "yes"
    yes.Parent = game.Workspace
    yes.CanCollide = false
    yes.Anchored = true
    yes.Position = Player.Character.LowerTorso.Position
    yes.Transparency = 0

    repeat wait(0.5) until Player.Character.LowerTorso.CFrame == yes.CFrame == false do
            Wall:Destroy()
            print 'Wall Destroyed'
            yes:Destroy()
            print 'Almost Done'
        end
    end

script.Parent.Folder.IdleWallEvent.OnServerEvent:connect(wallcreate)

As you can see I am a little stumped and so I was hoping somebody on here could help me.