My first try with Lumen

Tbanks a lot for your answer, so far I got big improvements but I still struggle with indirect light bouncing. I have a room in my scene where the lamps are facing the ceiling and 99% of the light in the room is indirect. With light baking I had the scene lit perfectly instead with lumen the room is pitch black unless I look directly at the light. Is there a way to fix this or it’s a lumen limitation?