How would I make a script, every kill gives you gold in leaderboard?

I'm new to scripting so I don't know how to do this ;-;

leaderboard script in ServerScriptService

game.Players.PlayerAdded:Connect(function(player)
	-- function activates when player joins
	local leaderstats = Instance.new("IntValue")
	leaderstats.Name = "leaderstats"
	leaderstats.Value = 0
	leaderstats.Parent = player
	-- creates leaderstats into player

	local gold = Instance.new("IntValue")
	gold.Name = "Gold"
	gold.Value = 0
	gold.Parent = leaderstats
	-- creates gold value in player
end)

Kill script in weapon:

local goldgiven = 2 -- change to change amount
-- of gold given per kill
local tool = script.Parent
-- the tool
local handle = tool:WaitForChild("Handle")
-- the handle or the part that the character sees
local holding = false
-- acts like a debounce

tool.Equipped:Connect(function()
	-- function activates when player
	-- takes out tool
	holding = true
	-- sets holding to true
end)

tool.Unequipped:Connect(function()
	-- function activates when player
	-- unequips the tool
	holding = false
	-- sets holding to false
end)


handle.Touched:Connect(function(hit)
	-- activates when something touched the handle
	if hit.Parent:FindFirstChild("Humanoid") then
		-- if the thing that touched it has a humanoid
		-- it does this
		local hum = hit.Parent:WaitForChild("Humanoid")
		-- finds humanoid and waits for it to load
		if hum.Health == 0 then
			-- if the health of the entity it hit is 0
			-- this happens
			if holding == true then
				-- the player has to be holding the tool
				-- or else the objective won't work and
				-- you have to switch up the variables
				local char = tool.Parent
				-- the character in the workspace
				local plr = game.Players:GetPlayerFromCharacter(char)
				-- takes the player in Players from the character
				local leaderstats = plr:FindFirstChild("leaderstats")
				-- finds leaderstats
				local gold = plr:FindFirstChild("Gold")
				-- finds gold
				if gold and leaderstats then
					-- if the player has the gold and leaderstats
					-- then this happens
					plr.leaderstats.gold.Value = plr.leaderstats.gold.Value + goldgiven
					-- gives player gold depending on the variable's (goldgiven)
					-- value. In this case it is 2 gold
			end
			end
		end
	end
end)

Tell me in the comments if it doesn't work.