It sounds like you are experiencing what is called “local axis mode” in Unity. When you rotate an object in the scene view, its local axis changes to match the new orientation. This can make it difficult to manipulate the object using the Unity Editor’s transform tools.
To switch back to “global axis mode”, where the axes are always aligned with the world coordinates, you can follow these steps:
Select the object you want to manipulate.
Click on the “Local/Global” button in the top left corner of the Unity Editor (it looks like a cube with an arrow pointing out of it).
The button will change to show either “Global” or “Local” depending on which mode you are currently in. Click it until it shows “Global” to switch to global axis mode.
You should now be able to manipulate the object using the transform tools in the same way you saw in the course.
Does this help?