How to Only Allow a Block to Give out Money Once? (Thanks in Advance)

So originally Someone would step on the block and not gain any money. Now I'm at the point where they gain money but can keep gaining it. I need the person to gain it once. This code is put on a Checkpoint block made by Roblox so some of the code is Checkpoint code. Thankyou in Advance

This is the leaderboard, the name of the currency is "ObbyBucks<|>"

game.Players.PlayerAdded:connect(function(p)
	local stats = Instance.new("IntValue")
	stats.Name = "leaderstats"
	stats.Parent = p
	
	local money = Instance.new("IntValue")
	money.Name = "ObbyBucks<|>"
	money.Value = 100
	money.Parent = stats
end)

Next is The code that makes the level variable. I'll tell you about it later.

game.Players.PlayerAdded:connect(function(p)
	local stats1 = Instance.new("IntValue")
	stats1.Name = "touch"
	stats1.Parent = p
	
	local money1 = Instance.new("IntValue")
	money1.Name = "levelup" 
	money1.Value = 1
	money1.Parent = stats1
end)

Last is the code put on the checkpoint block. My plan to keep them to <|>10 per level completion was to create a variable, called "levelup", child to "touch". Checkpoint one would only give them money if the variable, stored under the player, was 1. Checkpoint # 2 was only going to give them money if they're level 2 variable was 2 and would up the variable to 3 after giving them the money. etc. Any other ideas are appreciated

local myspawn = script.Parent
local serverStorage = game:GetService('ServerStorage')

local function award(player, level, bucks)
	local stats = player:findFirstChild('touch')
    local Money = player:findFirstChild("leaderstats")
	
	local EarnMoney = Money and Money:findFirstChild('ObbyBucks<|>')
    local levelStat = stats and stats:findFirstChild('levelup')
    if levelStat then
        levelStat.Value = levelStat.Value + level
	if EarnMoney then
		EarnMoney.Value = levelStat.Value + bucks
	end
    end
end

myspawn.Touched:Connect(function(hit)
    if hit and hit.Parent and hit.Parent:findFirstChild("Humanoid") then
        local player = game.Players:GetPlayerFromCharacter(hit.Parent)
        local checkpointData = serverStorage:findFirstChild("CheckpointData")
        if not checkpointData then
            checkpointData = Instance.new("Model", serverStorage)
            checkpointData.Name = "CheckpointData"
        end
        local checkpoint = checkpointData:findFirstChild(tostring(player.userId))
        if not checkpoint then
            checkpoint = Instance.new("ObjectValue", checkpointData)
            checkpoint.Name = tostring(player.userId)
            player.CharacterAdded:connect(function(character)
                wait()
                local HumanoidRootPart = character:WaitForChild("HumanoidRootPart")
                HumanoidRootPart.CFrame = serverStorage[tostring(player.userId)].Value.CFrame
                + Vector3.new(0, 4, 0)
            end)
        end
        checkpoint.Value = myspawn
        award(player, 10, 1)
	end
end)