Custom Explosion Not Dealing Damage?

I am trying to make an explosion where the player is, and it is custom shaped. But it won't do damage. Here is my code:

local function explode(part,givencolor,radius)
	local explosion = Instance.new("Part", part.Parent)
	local explosionSounds = {
		"rbxassetid://144699494",
		"rbxassetid://2648563122",
		"rbxassetid://3154829820",
		"rbxassetid://1197889183"
	}
	explosion.Anchored = true
	explosion.Position = part.Position
	explosion.Shape = Enum.PartType.Ball
	explosion.Material = Enum.Material.Neon
	explosion.CanCollide = false
	explosion.Size = Vector3.new(1,1,1)
	explosion.Color = givencolor
	explosion.Name = "Explosion"
	local exSound = Instance.new("Sound",explosion)
	exSound.SoundId = explosionSounds[math.random(#explosionSounds)]
	exSound.Volume = 5
	exSound:Play()
	for i=1, radius, 1 do
		explosion.Size = explosion.Size + Vector3.new(1,1,1)
		explosion.Transparency = explosion.Transparency + 1/radius
		explosion.Touched:Connect(function(hit)
			local humanoid = hit.Parent:FindFirstChild("Humanoid")
			if humanoid and hit.Parent ~= explosion.Parent then
				humanoid:TakeDamage(5)
			end
		end)
		wait()
	end
	explosion:Destroy()
end

Can anyone help me (pls don't just comment, i need ANSWERS.)

Why don't you just use Magnitude? Trying to rely on Touched is unreliable, since Touched tends to be really buggy and laggy.

Your Magnitude should look something like this:

(origin - target).Magnitude

Where:

• origin is the Vector3 to start from.

• target is the Vector3 to end at.

In terms of Vector3 values, you should use the Position of the part and the Position of whatever player you're trying to hit with the explosion. If you want to obtain a player, use GetPlayerFromCharacter() on any Model within the Workspace.

Also, if you're working locally, you should verify that the player who fired the explosion does not take any damage; this can be done on the server using RemoteEvent:FireServer()'s or RemoteFunction:InvokeServer()'s passed player argument, which is the player who fired the event.

Try this for the taking damage part:

script.Parent.Touched:Connect(function(Hit) --You can edit this part as well
	if Hit and Hit.Parent:FindFirstChild("Humanoid") then
		Hit.Parent.Humanoid.Health = 0 --You can customize this number
	end
end)