Having new lighting fixtures like lamps or ceiling lights will add more light to a room, but more light doesn’t always equal improved lighting.
Changing your curtains isn’t that expensive of a task, and doesn’t really require any special skills, making this an extremely simple solution to your problem.
Windows are the best source of natural light that your home has, and in certain scenarios, just simply changing your curtains isn’t enough to let more light in.
As a result, you may have to install entirely new windows to improve your home’s natural light.