Attempting to make the camera rotate around the player as if youre holding right click?

I am attempting at creating a custom camera script that basically acts as if you are constantly holding right click. But I cant seem to figure out the math for the camera rotation around the player. I am not the best at math so I am a little lost about this one, I tried something I thought may work but it didnt. (Youll see in my code below).

local Player = game:GetService("Players").LocalPlayer

local Character = Player.Character

local Humanoid = Character:WaitForChild("Humanoid")

local Mouse = Player:GetMouse()

local Camera = workspace.Camera

local RunService = game:GetService("RunService")

local UserInputService = game:GetService("UserInputService")

Camera.CameraType = Enum.CameraType.Scriptable

UserInputService.MouseBehavior = Enum.MouseBehavior.LockCenter

function UpdateCameraPosition()

Camera.CFrame = CFrame.new((Character.PrimaryPart.CFrame * CFrame.Angles(Mouse.Y/Mouse.ViewSizeY, Mouse.X/Mouse.ViewSizeX, 0)) * CFrame.new(3, 5, 5).Position, Character.PrimaryPart.Position)

end

RunService:BindToRenderStep("Camera", Enum.RenderPriority.Camera.Value, UpdateCameraPosition)

Does anyone have any ideas? Also how in the world do you put all your code into the block? 1 line at a time? This is my first time back on this site with the new text editor.