[HELP] Rotating a part based on the mouse's position

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#1

Hello , i have this little script right here that tries to calculate the angle between a part and the mouse’s position :

local player = game.Players.LocalPlayer
local character = player.Character or player.CharacterAdded:Wait()
local humanoidRootPart = character:WaitForChild("HumanoidRootPart") 

local mouse = player:GetMouse()

local arrow = game.Workspace.Arrow

local mouseDirection
mouse.Move:Connect(function()
	mouseDirection = arrow.CFrame:ToObjectSpace(mouse.Hit).LookVector
	
	print(-math.asin(mouseDirection.X))
	
	arrow.CFrame = arrow.CFrame * CFrame.Angles(0,-math.atan(mouseDirection.X/mouseDirection.Y),0)
end)

Here’s the result :

#2

Try this

arrow.CFrame = CFrame.new(arrow.Position, mouse.Hit.Position)
#3

I don’t want to use this method because i want to train with trigonometry , and as you can see i suck at it