How do you make a custom leaderboard?

I've very new to scripting and been searching the internet but can't find any that work. Please help!

I do, in Roblox Studio, this one e.g if there were coins and in the leaderboard, it shows the coins and e.g coins = 20. I will tell you what to do, Go and Configure the game you want to make a leaderboard and tick the box 'Enable Studio Access To API Services', then go to your game in Roblox studio and create a script underneath ServerScriptService and name it LeaderBoardScript. Open up the script and write:

       local function AddBoard2Player(Player)
       local board = Instance.new("Model,Player")
       board.name = "Leaderstats"
       local money = Instance.new("IntValue",board)
       money.Name = "money"
       money.Value = 0
       end)