My simple datastore isn't saving stats, should I migrate to datastore2?

How hard would it be to turn this into datastore2? This script worked fine and now it doesnt..

local DataStore = game:GetService("DataStoreService")
local MaxHealth1 = DataStore:GetDataStore("MaxHealth001")
local Level1 = DataStore:GetDataStore("Level001")
local Qalium1 = DataStore:GetDataStore("Qalium001")
local XP1 = DataStore:GetDataStore("XP001")
local HealthP1 = DataStore:GetDataStore("Health001")
local SwordP1 = DataStore:GetDataStore("Sword001")
local MeleeP1 = DataStore:GetDataStore("Melee001")
local ClassP1 = DataStore:GetDataStore("Class001")
local Points1 = DataStore:GetDataStore("Points001")
local Sign1 = DataStore:GetDataStore("Sign001")
local Tries1 = DataStore:GetDataStore("Tries001")
local Element1 = DataStore:GetDataStore("Element001")

game.Players.PlayerAdded:Connect(function(Plr)
    local stats = Instance.new("Folder", Plr)
    stats.Name = "leaderstats1"

    local MaxHealth = Instance.new("IntValue", stats)
    MaxHealth.Name = "MaxHealth"
    MaxHealth.Value = 125
    local Level = Instance.new("IntValue", stats)
    Level.Name = "Level"
    Level.Value = 1
    local XP = Instance.new("IntValue", stats)
    XP.Name = "XP"
    XP.Value = 0
    local Qalium = Instance.new("IntValue", stats)
    Qalium.Name = "Qalium"
    Qalium.Value = 0
    local HealthP = Instance.new("IntValue", stats)
    HealthP.Name = "HealthP"
    HealthP.Value = 1
    local SwordP = Instance.new("IntValue", stats)
    SwordP.Name = "SwordP"
    SwordP.Value = 1
    local MeleeP = Instance.new("IntValue", stats)
    MeleeP.Name = "MeleeP"
    MeleeP.Value = 1
    local ClassP = Instance.new("IntValue", stats)
    ClassP.Name = "ClassP"
    ClassP.Value = 1
    local Sign = Instance.new("StringValue", stats)
    Sign.Name = "Sign"
    Sign.Value = ""
    local Points = Instance.new("IntValue", stats)
    Points.Name = "Points"
    Points.Value = 0
    local Tries = Instance.new("IntValue", stats)
    Tries.Name = "Tries"
    Tries.Value = 0
    local Element = Instance.new("StringValue", stats)
    Element.Name = "Element"
    Element.Value = ""

    MaxHealth.Value = MaxHealth1:GetAsync(Plr.UserId) or MaxHealth.Value
    MaxHealth1:SetAsync(Plr.UserId, MaxHealth.Value)
    MaxHealth.Changed:connect(function()
        MaxHealth1:SetAsync(Plr.UserId, MaxHealth.Value)
    end)
   Level.Value = Level1:GetAsync(Plr.UserId) or Level.Value
       Level1:SetAsync(Plr.UserId, Level.Value)
      Level.Changed:connect(function()
       Level1:SetAsync(Plr.UserId, Level.Value)
   end)
   Qalium.Value = Qalium1:GetAsync(Plr.UserId) or Qalium.Value
       Qalium1:SetAsync(Plr.UserId, Qalium.Value)
      Qalium.Changed:connect(function()
       Qalium1:SetAsync(Plr.UserId, Qalium.Value)
   end)
   XP.Value = XP1:GetAsync(Plr.UserId) or XP.Value
       XP1:SetAsync(Plr.UserId, XP.Value)
      XP.Changed:connect(function()
       XP1:SetAsync(Plr.UserId, XP.Value)
   end)
   SwordP.Value = SwordP1:GetAsync(Plr.UserId) or SwordP.Value
       SwordP1:SetAsync(Plr.UserId, SwordP.Value)
      SwordP.Changed:connect(function()
       SwordP1:SetAsync(Plr.UserId, SwordP.Value)
    end)
    HealthP.Value = HealthP1:GetAsync(Plr.UserId) or HealthP.Value
    HealthP1:SetAsync(Plr.UserId, HealthP.Value)
    HealthP.Changed:connect(function()
        HealthP1:SetAsync(Plr.UserId, HealthP.Value)
    end)
    MeleeP.Value = MeleeP1:GetAsync(Plr.UserId) or MeleeP.Value
    MeleeP1:SetAsync(Plr.UserId, MeleeP.Value)
    MeleeP.Changed:connect(function()
        MeleeP1:SetAsync(Plr.UserId, MeleeP.Value)
    end)
    ClassP.Value = ClassP1:GetAsync(Plr.UserId) or ClassP.Value
    ClassP1:SetAsync(Plr.UserId, ClassP.Value)
    ClassP.Changed:connect(function()
        ClassP1:SetAsync(Plr.UserId, ClassP.Value)
    end)
    Sign.Value = Sign1:GetAsync(Plr.UserId) or Sign.Value
    Sign1:SetAsync(Plr.UserId, Sign.Value)
    Sign.Changed:connect(function()
        Sign1:SetAsync(Plr.UserId, Sign.Value)
    end)
   Points.Value = Points1:GetAsync(Plr.UserId) or Points.Value
       Points1:SetAsync(Plr.UserId, Points.Value)
      Points.Changed:connect(function()
       Points1:SetAsync(Plr.UserId, Points.Value)
    end)
    Tries.Value = Tries1:GetAsync(Plr.UserId) or Tries.Value
    Tries1:SetAsync(Plr.UserId, Tries.Value)
    Tries.Changed:connect(function()
        Tries1:SetAsync(Plr.UserId, Tries.Value)
    end)
    Element.Value = Element1:GetAsync(Plr.UserId) or Element.Value
    Element1:SetAsync(Plr.UserId, Element.Value)
    Element.Changed:connect(function()
        Element1:SetAsync(Plr.UserId, Element.Value)
    end)
end)

game.Players.PlayerRemoving:connect(function(Player)
    MaxHealth1:SetAsync(Player.UserId, Player.leaderstats1.MaxHealth.Value)
    Level1:SetAsync(Player.UserId, Player.leaderstats1.Level.Value)
    Qalium1:SetAsync(Player.UserId, Player.leaderstats1.Qalium.Value)
    XP1:SetAsync(Player.UserId, Player.leaderstats1.XP.Value)
    HealthP1:SetAsync(Player.UserId, Player.leaderstats1.HealthP.Value)
    SwordP1:SetAsync(Player.UserId, Player.leaderstats1.SwordP.Value)
    MeleeP1:SetAsync(Player.UserId, Player.leaderstats1.MeleeP.Value)
    ClassP1:SetAsync(Player.UserId, Player.leaderstats1.ClassP.Value)
    Points1:SetAsync(Player.UserId, Player.leaderstats1.Points.Value)
    Tries1:SetAsync(Player.UserId, Player.leaderstats1.Tries.Value)
    Element1:SetAsync(Player.UserId, Player.leaderstats1.Element.Value)
    Sign1:SetAsync(Player.UserId, Player.leaderstats1.Sign.Value)
end)