How can I make a Data Store that can save 4-5 values?

Firstly, you would need to acquire DataStoreService and save the Data inside a table. Secondly, you will look through the DataStore where you are saving data if any Data is found you will use SetAsync to represent it otherwise the default.

local DataStore = game:GetService("DataStoreService") local DS1 = DataStore:GetDataStore("PlayerData") -- This is where you will save your data to.

game.Players.PlayerAdded:Connect(function(Player) local User = "user-" .. tostring(Player.UserId) -- Get the player's UserId local Data = Instance.new("Folder", Player) -- Instance a folder inside the Player local Exp = Instance.new("IntValue", Player) -- Instance an IntValue inside the Data folder.

Data.Name = "Data"
Exp.Name = "Exp"

local Save = DS1:GetAsync(user)

if Save then
    Exp.Value = Save[1]
else
    local ProgressToSave = {Exp.Value}
    DS1:SetAsync(user, ProgressToSave )

end)

-- Once the player is leaving the game you want to save their achievements.

game.Players.PlayerRemoving:Connect(function(Player) local User = "user-" .. tostring(Player.userId) local SaveProgress = {Player.Data.Exp.Value} DS1:SetAsync(user, SaveProgress) end)

Hopefully, I helped.

Just store them in a table and save that table to a key. You could also use multiple keys if you wished, but that is inefficient. There is limits to the length of saved data. For more information, click here