this is my script so far

-------------CREATES THE POINT I WANNA AIM AT-----------------
Instance.new("Part",game.Workspace)
game.Workspace.Part.Name="Green"
game.Workspace.Green.CFrame=CFrame.new(35.7394753, 3, -23.1335964, -0.0204065256, 0, -0.999793291, 0, 1, 0, 0.999793291, 0, -0.0204065256)
game.Workspace.Green.Anchored=true
game.Workspace.Green.Size=Vector3.new(1,1,1)
game.Workspace.Green.BrickColor=BrickColor.Green()
---------------------------------------------------------------------
-------------------------------Creates a wall--------------------------
Instance.new("Part",game.Workspace)
game.Workspace.Part.Name="Wall"
game.Workspace.Wall.CFrame=CFrame.new(-7.33410549, 3, -24.0379162, -0.0346626081, -3.2247442e-08, -0.99939847, -6.16503897e-08, 0.99999994, -3.0128664e-08, 0.99939847, 6.05688868e-08, -0.0346626081)
game.Workspace.Wall.Anchored=true
game.Workspace.Wall.Size=Vector3.new(30,30,1)
game.Workspace.Wall.Transparency=0.5
---------------------------------------------------------------------

wait()

------------------------Toggles the aim------------------------------
local UserInputService = game:GetService("UserInputService");

UserInputService.InputBegan:Connect(function(input, gameProcessed)
    if input.KeyCode == Enum.KeyCode.Q then
       	if game.Workspace:FindFirstChild("Green") then
			game.Workspace.Green.Name="Green2"
else
			game.Workspace.Green2.Name="Green"
		end
    end
end)
---------------------------------------------------------------------

-- THE GUD PART--
while true do
wait()
if game.Workspace:FindFirstChild("Green") then
local point1 = game.workspace.ZetaIsBack.Head
local point2 = game.workspace.Green

local camera = workspace.CurrentCamera
local worldPoint = Vector3.new(point2.Position)
local vector, inViewport = camera:WorldToViewportPoint(worldPoint)

local distance = math.floor((point1.Position - point2.Position).Magnitude)
print(distance)
local ray = Ray.new(point1.CFrame.Position, (point2.CFrame.Position - point1.CFrame.Position) )
local part,position = game.workspace:FindPartOnRay(ray,point2,false,true)

if not part then -- if the ray is colliding with any part then
	if inViewport == true then
		if distance<100 then
  			game.Workspace.CurrentCamera.CFrame=CFrame.new(game.workspace.CurrentCamera.CFrame.Position,game.workspace.Green.CFrame.Position)
		end
	end
end
end
end