I have the basic understanding of mouse functions, here is my example of what I know:
local player = game.Players.LocalPlayer local mouse = player:GetMouse()
I know MouseTarget and such.
But is it possible to make a little box where the mouse clicker can go around but never go out of the box? I don't want the mouse to stay still however but I don't want it to go outside the box. I just don't know where to start with my semi-sophisticated scripting skill self.
One method you could use, as you suggest in your comment, is a "fake mouse" system. That is:
This is a lot of work, but it gives you the most control.
You might also consider using UserInputService.MouseBehavior, which allows you to lock the mouse using one of these values. If you can change your control system to work with a locked mouse position, it'll be a lot easier to code.
Make a fake mouse with the real mouse giving input to move it, but program it so it doesn't go outside.