How can I put my own animation into this script?

So i have a fireball script. This is the script used to fire it.

local Player = game.Players.LocalPlayer
local Mouse = Player:GetMouse()
local RemoteEvent = game.Workspace.Fired
local UIS = game:GetService("UserInputService")

local Debounce = false

UIS.InputBegan:Connect(function(Input)
    if Input.KeyCode == Enum.KeyCode.R then wait(0.5)
        if Debounce == true then return end
        RemoteEvent:FireServer(Debounce)
    end
end)

Im trying to figure out how i could put my animation i made on to this to make it look like its being thrown when the fireball spawns in.

Right now im using this animation script with it to make it look like its being thrown, but I know that this is not a good way to do it, and that there may be a way for them to be combined into one script.

  Animation = Instance.new("Animation")
    Animation.Parent = game.Workspace
    Animation.AnimationId = "http://www.roblox.com/asset/?id=2019308824"
    local Player = game.Players.LocalPlayer
    local mouse = game.Players.LocalPlayer:GetMouse()
mouse.KeyDown:connect(function (key)
    for i, v in pairs(game.Players:GetChildren()) do
    if key == "r" then 
        local AnimationTrack = Player.Character.Humanoid:LoadAnimation(Animation)
            AnimationTrack:Play()
    end
    end
    end)