Need help figuring out how to add a crafting system to my inventory system

Help and Feedback Scripting Support
#1

I’m super stressed out right now. I don’t know what to do. I already found all of my items and figured out their costs and set up the purchase gui, I just… have no idea what to do next.

Here’s the section of the inventory code that handles item values (I think? I followed a tutorial):

local ReplicatedStorage = game:GetService("ReplicatedStorage")
local DropItem = ReplicatedStorage:WaitForChild("DropItem")

wait (1)

local player = game.Players.LocalPlayer
local Inventory = player.Inventory

local MainGui = script.Parent
local InventoryGui = MainGui.InventoryGui

for i, itemValue in pairs(Inventory:GetChildren()) do
	itemValue.Changed:Connect(function()
		local itemGui = InventoryGui.ItemList:FindFirstChild(itemValue.Name)
		if itemGui then
			itemGui.ItemQuantity.Text = itemValue.Value
			if itemValue.Value <= 0 then
				itemGui.Visible = false
			else
				itemGui.Visible = true
			end
		end
	end)
end

for i, itemButton in pairs (InventoryGui.ItemList:GetDescendants()) do
	if itemButton:IsA("ImageButton") then
		itemButton.MouseButton2Up:Connect(function()
			local itemFrame = itemButton.Parent
			local itemValue = Inventory:FindFirstChild(itemFrame.Name)
			if itemValue.Value > 0 then
				local DropItem = DropItem:InvokeServer(itemFrame.Name)
				if DropItem == true then
					if itemValue.Value > 0 then
						itemFrame.ItemQuantity.Text = itemValue.Value
					else 
						itemFrame.Visible = false
					end
				end
			end
		end)
	end
end

If anyone thinks they could help me figure this out, THANK YOU