How to make raycast go through player who casted it?

In my game players can use a raycast gun, but when shooting the gun to an area behind them, the ray hits the caster, I've come up with a temporary solution that makes it so the ray doesn't deal damage to them, but they still end up blocking their own shot. Is there any way to make it so the ray will pass through the user that fired the gun?

local tool = script.Parent
local shoot_part = tool:WaitForChild("Barrel")
local remote = tool:WaitForChild("Fire")
local user = script.Parent.Parent.Parent
local user2 = user.Character.Humanoid
local user3 = user.Character


local Workspace = game:GetService("Workspace")
local ServerStorage = game:GetService("ServerStorage")
local cd = false
remote.OnServerEvent:Connect(function(player, position)
	if not cd then
		cd = true
		spawn(function()
			wait(3)
			cd = false
		end)
	local origin = shoot_part.Position
	local direction = (position - origin).Unit*300
	local result = Workspace:Raycast(origin, direction)

	local intersection = result and result.Position or origin + direction
	local distance = (origin - intersection).Magnitude
	local light = script.Parent.Handle.BlamLight
	local fire = script.Parent.Handle.BlamFire
	local shoot = script.Shoot
	local nuts = user2:LoadAnimation(shoot)
	nuts:Play()
	spawn(function()
		light.Enabled = true
		fire.Enabled = true
		wait(0.1)
		fire.Enabled = false
		light.Enabled = false
	end)
	local gun = script.Parent.Handle.Fire:Clone()
	gun.Parent = user3.HumanoidRootPart
	gun:Play()
	spawn(function()
		wait(4)
		gun:Destroy()
	end)
	local bullet_clone = ServerStorage.Bullet:Clone()
	bullet_clone.Size = Vector3.new(0.1, 0.1, distance)
	bullet_clone.CFrame = CFrame.new(origin, intersection)*CFrame.new(0, 0, -distance/2)
	bullet_clone.Parent = Workspace
	local random = Random.new()


	if result then
		local part = result.Instance
		local humanoid = part.Parent:FindFirstChild("Humanoid") or part.Parent.Parent:FindFirstChild("Humanoid")
		local torso = part.Parent:FindFirstChild("Torso") or part.Parent.Parent:FindFirstChild("Torso")
		local root = part.Parent:FindFirstChild("HumanoidRootPart") or part.Parent.Parent:FindFirstChild("HumanoidRootPart")
		local charactervalues = part.Parent:FindFirstChild("charactervalues") or part.Parent.Parent:FindFirstChild("charactervalues")
			local material = part.Material
			
			if part.Name == "Part" then
				print("hit a part")
			end

		if humanoid then
			if charactervalues:WaitForChild("Role").Value ~= "Vampire" then 
				humanoid:TakeDamage(0)
			else
				humanoid:TakeDamage(60)
				local sound = game.ServerStorage.Hit:Clone()
				sound.Parent = root
				sound.PlaybackSpeed = 	random:NextNumber(0.5, 1.5)
				sound:Play()
				spawn(function()
					wait(3)
					sound:Destroy()
				end)
				end
			end
			
		end

	
	

	wait(0.25)
		bullet_clone:Destroy()
		end
end)