Hey, so im new to Skpindigo and ive been trying to render a few interior views. I often face a lot of difficulty with artificial lighting/ night views . The view rendered as night views take way too long and the fire flies/ white spots just keep getting worse is it goes. Im sure that this isnt meant...

Ok so ive been rendering this for the last 8 hours and its only gotten worse. I havent added any textures as yet just so that i could get the lighting correct, but it looks like im not doing something right. how do i make this better? and how long does a typical render take to complete?