How to make a First Person Walk and Sprint Gun Animation? ( f i r s t p e r s o n ) [closed]

So, i'm weirdly retarded or i just forgot how to do this, but whether im decently new to lua coding and i'm trying to play an animation for a gun in firstperson, not a tool. yes, its not a tool. the code

local UIS = game:GetService('UserInputService')
local Player = game.Players.LocalPlayer
local Character = Player.Character
local viewmodel = game.ReplicatedStorage.as_val_animations.Walk
local walk = game.StarterPlayer.StarterPlayerScripts.LocalHandler
local ReplicatedStorage = game:GetService("ReplicatedStorage")

UIS.InputBegan:connect(function(input)
    if input.KeyCode == Enum.KeyCode.LeftShift then
        Character.Humanoid.WalkSpeed = 23
        local Anim = Instance.new('Animation')
        Anim.AnimationId = 'rbxassetid://' 
        PlayAnim = viewmodel.AnimationController:LoadAnimation()
        PlayAnim:Play()
    end
end)

UIS.InputEnded:connect(function(input)
        Character.Humanoid.WalkSpeed = 13
        PlayAnim:Stop()
        local Anim = Instance.new('Animation')
        Anim.AnimationId ='rbxassetid://7251566677'
        PlayAnim = viewmodel.AnimationController:LoadAnimation(walk)
        PlayAnim:Play(walk)

end)

local function Moved()
    if Character.Humanoid.MoveDirection.magnitude > 0 then
        Character.Humanoid.WalkSpeed = 13
        PlayAnim:Stop()


    else
        print("Stopped Moving")
    end
end

i have no idea what i did wrong because yes the first lines of what i said