Handy Tips
Painting corners - For a novice, painting the corners without accidentally painting unwanted surfaces can be tricky. It is best to use a large roller for the whole wall, but towards the corners, prefer to use a paintbrush.
Painting edges - Utilize paper scotch tape along the edge of the other surface that you don’t wish to paint with this colour. This will prevent paint from dripping onto the other surface be it a panel or the floor.