First of all, you should make sure that your brightness matches the room lighting
Try to reduce the blue light and remove PWM flicker to prevent macular degeneration
The blue light is very bad for your eyes and reduces sleep quality and makes you feel more tired, the same thing goes for PWM flicker, which is essentially your screen flashing at all times, at speeds so fast that the eyes canβt perceive but your brain does.
You can download a program that does it for you, one such program is Iris