[SOLVED]Save if you already touched a part?

im trying to make it so when you have touched the part, it will add stats once. When you leave the game and join back and touch the part, it will not add the stats because you already touched the part before. Basically like a datastore but with touching a part and not number values

--//ServerScript
wait(2)

local sell = script.Parent
local debounce = false
local tool = game.ReplicatedStorage.Present
local toFire = script.Parent.Client
local ds = game:GetService("DataStoreService")
local dss = ds:GetDataStore("NotMyRealDataStoreNameBtw")

game.Players.PlayerAdded:Connect(function(plr)
local key = "upgrade-"..plr.UserId
local folder = Instance.new("Folder",plr)
folder.Name = "Upgrades"
local save = dss:GetAsync(key)

if save then
	for i = 1,#save do
		local temp = Instance.new("BoolValue",folder)
		temp.Name = save[1]
	end
end
end)

sell.Touched:Connect(function(hit)
	if not debounce then
	debounce = true
	if hit.Parent:FindFirstChild("Humanoid")then
		local plr = workspace[hit.Parent.Name]
		local player = game.Players:GetPlayerFromCharacter(plr)
		local key = "upgrade-"..player.UserId
		local bool = Instance.new("BoolValue",player.Upgrades)
		bool.Name = "Upgrade"
		bool.Value = true
		local activated = {}
		local Capacity = game.ReplicatedStorage.Capacity
		local upgrades = player:WaitForChild("Upgrades")
		local money = player.leaderstats.Money
		
		if not upgrades:FindFirstChild("Upgrade")and money.Value >= 2000 then
		local reward = 25
		Capacity.Value = Capacity.Value + reward
			for i,v in pairs(player.Upgrades:GetChildren())do
			if v:isA("BoolValue")then
				table.insert(activated, v.Name)
				dss:SetAsync(key,activated)
				print("Upgrade Success")
			else
				print("Upgrade already purchased")
				Capacity.Value = Capacity.Value + 0
		wait(1)
		debounce = false
		
				end
			end
		end
	end
	end
end)