How do I change player's animations?

I've done a Script in ServerScriptService containing the following code:

local Players = game:GetService("Players")

local function onCharacterAdded(character)
    local humanoid = character:WaitForChild("Humanoid")

    for _, playingTracks in pairs(humanoid:GetPlayingAnimationTracks()) do
        playingTracks:Stop(0)
    end

    local animateScript = character:WaitForChild("Animate")

    animateScript.idle.Animation1.AnimationId = "rbxassetid://5432167890"

    animateScript.walk.WalkAnim.AnimationId = "rbxassetid://1759277502"

    animateScript.jump.JumpAnim.AnimationId = "rbxassetid://1760393958"

    animateScript.fall.FallAnim.AnimationId = "rbxassetid://1760423961"
end

local function onPlayerAdded(player)
    if player.Character then
        onCharacterAdded(player.Character)
    end
    player.CharacterAdded:Connect(onCharacterAdded)
end

Players.PlayerAdded:Connect(onPlayerAdded)

They told me to put this script in another place and change the script, but what should I do?