Click with tool out to weld onto humanoid won't work?

I have a tool with a handle inside, and parts like the helmet for the top to weld. What I want to achieve is when I have the tool out, and clicked. I welds the helmet to my head. The problem is I'm having trouble with the function or mouse click detection, but I got the weld function which is great.

tool = script.Parent
handle = tool:WaitForChild("Handle")

tool.Equipped:Connect(function()
	print("Tool Equipped")
end)

tool.Activated:Connect(function()
	print("Tool Activated")
end)

function Equipped(hit)
	
	tool = script.Parent
	handle = tool:WaitForChild("Handle")

	tool.Equipped:Connect(function()
		print("Tool Equipped")
	end)

	tool.Activated:Connect(function()
		print("Tool Activated")
	end)
	
	if tool.Activated then
		local g = script.Parent.Parent.Top:clone()
		g.Parent = hit.Parent
		local C = g:GetChildren()
		for i=1, #C do
			if C[i].className == "Part" or C[i].className == "UnionOperation" or C[i].className == "MeshPart" then
				local W = Instance.new("Weld")
				W.Part0 = g.Middle
				W.Part1 = C[i]
				local CJ = CFrame.new(g.Middle.Position)
				local C0 = g.Middle.CFrame:inverse()*CJ
				local C1 = C[i].CFrame:inverse()*CJ
				W.C0 = C0
				W.C1 = C1
				W.Parent = g.Middle
			end
			local Y = Instance.new("Weld")
			Y.Part0 = hit.Parent.Head
			Y.Part1 = g.Middle
			Y.C0 = CFrame.new(0, 0, 0)
			Y.Parent = Y.Part0
		end

		local h = g:GetChildren()
		for i = 1, # h do
			h[i].Anchored = false
			h[i].CanCollide = false
		end
		hit.Parent.Saude.Protecao.HelmetProtect.Value = 5000
		hit.Parent.Saude.Protecao.HelmetVida.Value = 3000
	end
end
wait()
g.Destroy()

Very easy thing to answer.

You cannot do an if statement to check if the tool is activated, it has to be something like this

tool.Activated:Connect(function()
	-- script here.
end)

Do with this what you will.