Shadows are too dark in living room

Hello, I am new here and i have a problem with Shadows,

This is my living room

note the shadow is too dark!

I have researched here about this and i found a solution to put a skylight,
but when i put a skylight

the shadows are ok now, but the whole house is clear

Any suggestion?
Thanks for now and sorry my bad english =/

The room is dark without the sky light because Unreal Engine 4 is only rendering direct lighting. If the meshes that your house is built out of do not move, you should make sure their mobility is set to ‘Static’, and then perform a lighting build (click the big “Build” button in the editor, and then wait a while). This will calculate indirect (bounce) lighting, which will make your room look more realistic.

Using a skylight indoors for a night scene (no light coming through windows) won’t produce good results, as you noticed.

You also need a lightmass importance volume for the indirect light to work. It sets the bounds for the raytrace.