DIY Sunlight?

Hi all I've just moved and my bedroom has 1 window that faces a brick wall. As you can imagine, the room is very dark and having no natural lighting is depressing. To help, I was trying to find a way to mimic sunlight. I thought LED tape might do but I feel like it would create bright lines of light which is not very natural looking. Any ideas? Already buying a sun lamp but I need more light